Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for iRobot Roomba Plus 4020 Combo Robot Vacuum & Mop with AutoWash Dock and DualClean Mop Pads for
iRobot Roomba Plus 4020 Combo Robot Vacuum & Mop with AutoWash Dock and DualClean Mop Pads
4.3 out of 5 stars
stars
62 ratings59 reviews
  1. 5 stars65% (40)
  2. 4 stars18% (11)
  3. 3 stars10% (6)
  4. 2 stars3% (2)
  5. 1 star5% (3)

Member photos

  • +30 images
Sort by |
Showing 11-20 of 59 reviews
Mar 30, 2026
JeneW
4 out of 5 stars review

Grateful for our daily upkeep

[This review was collected as part of a promotion.] If you have animals like me , especially heavy shedding kinds read on to get my take on owning the Roomba plus 400 serious. I have 2 cats, one husky and a Pomsky, so lots of shedding, the Roomba is amazing for maintenance, but it's not going to fully replace a regular vacuum with that level of shedding. Think of it as keeping things under control between your deep cleans. The Roomba is extremely convenient when I'm busy or just don't feel like doing it that day, I can go in the app on my phone even when I'm not home and select from 3 different levels of vacuuming or chose the mop and vacuum option. I always select deep clean because of the amount of animals I have which is really nice because I am often busy. It takes the Roomba about an hour and a half to do a deep clean for my living room and kitchen. The mopping function leaves the floor a little bit wetter than I would like for LVP floors, so when I use that setting, I have to be prepared to go behind with a dry mop to just kind of dry the floor a bit. I do really like that. The Roomba has a self cleaning function so when it's full, it empties into its own vacuum bag. And it also cleans out the water tank and refresh's it so you don't get any icky water just sitting stagnant. It has a smart feature where it maps out your house and you can designate areas you don't want done. A problem I have with the mopping function is it did try to mop my carpets even though I marked that section as a no go. I wish I could say the Roomba wasn't that loud, but it is pretty loud & The Roomba docking station is rather large and is an eyesore, so I don't love that but the convenience of it outweighs the con's lol. Overall, I would give the Roomba four stars out of five.

Review from influenster.com
Helpful?5Q78HIEL7GG216157612879
Mar 2, 2026
HaleyH
5 out of 5 stars review

AMAZING!

[This review was collected as part of a promotion.] This is possibly the coolest thing we have ever gotten! The Roomba plus 405 combo robot + auto wash with dock is absolutely amazing! It mops for ya and all! The coolest invention ever & I highly recommend!

Review from influenster.com
Helpful?5Q78HIEL7GG216157612879
Feb 26, 2026
GenesisH
5 out of 5 stars review

ITS NOT A WANT , IT IS A NEED

[This review was collected as part of a promotion.] Why hire a cleaner when you can do a one time investment and have that help! I'm a busy mom who works full time and has a toddler crawling and walking through out the whole house. I also have 3 dogs and the tend to shed a lot. It's nice coming home knowing that there's no crumbs and dog hairs all over my floors. I love that the app is so easy to use and maps my whole house. It does a great job at mopping and vacuuming. It's holy grail and life changing product! Don't second guess it because you'll thank yourself as soon as you put it to use.

Review from influenster.com
Helpful?5Q78HIEL7GG216157612879
Mar 2, 2026
TaylorD
5 out of 5 stars review

Great Mop/Vacuum Huge Upgrade

[This review was collected as part of a promotion.] This Roomba is far superior to my other Roomba. I have used the mop and vacuum feature on my tile floor. The time is about 1000sqft and it did a great job. When filling up the water tank for the first time I thought this amount of water will only make it through one clean but it barely made a dent in the water reservoir. My previous rumba would bang into walls and furniture but this new one will sense the items and avoid them. My favorite feature on the app is the spot clean. I have two little children that are always making messes and to have this spot. Lean ability is a lifesaver. Overall I would recommend this to anyone.

Review from influenster.com
Helpful?5Q78HIEL7GG216157612879
Feb 27, 2026
AndreaP
5 out of 5 stars review

I am in love

[This review was collected as part of a promotion.] This is such a useful home tool and is saving me so much time and effort. It set up very easily with the app and is easy to control. You make a map a d can see where it has cleaned and needs to still go. The battery is good when doing a regular clean but it needs to stop for a charge during the deep clean. I love the mopping feature. The vacuum is about ad loud as mu other push one. The docking station has a bag for the vacuum to empty into as well as the dirty water. I vacuumed twice before running this for the first time and it still picked up a good amount of dirty and dog hair. It did clog the bin a little so keep that in mind if you have dogs you might want to empty it in addition to the self empty.

Review from influenster.com
Helpful?5Q78HIEL7GG216157612879
Feb 27, 2026
IramS
5 out of 5 stars review

Solid, mid range all in one

[This review was collected as part of a promotion.] I have finally found the house help that I have been looking for forever. It is reliable and it does exactly what you tell it to do and best is it does not talk back. Except maybe occasionally gets loud on the carpets lol. Totally recommend this to anyone wanting to cut down their chores and have extra time on hand. Navigation is great, you can map out the whole house and it will do exactly the areas you want cleaned. Easily onto carpet from wood but just thing carpet, I feel like the mop heads would drag if the carpet was any thicker. You can decided how often you want it to clean up, so like the area and all can selected on the app. The app is super easy to download and use. It gets the small nook and corners but not as efficiently because of it shape. Roomba 405 is set it and forget it. The suction is strong enough to pick up dust and hair. The spinning of mops helps get tough areas. The dock!! It is a game changer. It empties the dustbin, washed the pads and refills the water tank.

Review from influenster.com
Helpful?5Q78HIEL7GG216157612879
Feb 25, 2026
ShelbyW
5 out of 5 stars review

Best investment ever! Buy the Roomba!

[This review was collected as part of a promotion.] Let me start off by saying this was the quickest house appliance I've ever setup. Instructions were easy to read and clear. Got the app installed and connected within minutes. We have 3800 sq ft house and this guy mapped it in about 30 minutes, charged for maybe 20 and then Mr. Sweeper was off to go start cleaning! He is the perfect size to get underneath tables, cabinets and beds. Suction is adjustable, you can change the mop options also and schedule time when and where it runs. This is literally a dream and helps me with TWO chores so I have more time to spend with my kids every day!

Review from influenster.com
Helpful?5Q78HIEL7GG216157612879
Mar 29, 2026
KateG
5 out of 5 stars review

First roomba

[This review was collected as part of a promotion.] Never have tried a Roomba before, and so far I am impressed. Initial charge from opening the box wasnt too long, along with the first "mapping." I haventt used the mop feature yet just the dry vacuum, which I am impressed with. Noise level isnt too bad either.

Review from influenster.com
Helpful?5Q78HIEL7GG216157612879
Dec 7, 2025
Dustin
1 out of 5 stars review

We unpacked it and set up everything. after one round of cleaning they came back to the dock to empty the dirty water but they kept saying that there was an error with a blockage. The only way that we found this to work was too physically hold it down so the dirty water could empty. Basically it was broken out of the box. We will return.

Helpful?5Q78HIEL7GG216157612879
Mar 26, 2026
AveryB
5 out of 5 stars review

Best roomba I’ve used yet !

[This review was collected as part of a promotion.] I have been loving this roomba. It does a surprisingly good job of cleaning the floors with the mop. I love that I can set it to deep clean or just light wash where it’ll go over more times. You can also vacuum separate from the mop which is even nicer. The suction has been great. It’s very efficient time wise. So far no complaints.

Review from irobotus
Helpful?5Q78HIEL7GG216157612879