[This review was collected as part of a promotion.] TLDR; In theory, the product sounds great, however, has several bugs as it relates to the mopping feature. So much so, you are better off not using the feature at all and just using this product for vacuuming, at which point, you could buy a nicer Shark vacuum for a lot less.
As a baseline, I have used multiple other robot vacuums (one by Roomba, and one by Shark) before using the Shark PowerDetect 2-in-1 Robot Vacuum and Mop with Never Touch Base.
In general, I have always loved robot vacuums as they are efficient and keep my house clean with minimal effort. I did like the Shark PowerDetect, however I ran into a handful of major technical and design issues. I'm not trying to be overly critical, as the vacuum is innovative and has a lot of potential if these issues were to be addressed.
Mapping Bugs
To start, I ran into a major bug relating to house mapping. House mapping is when the vacuum explores your house and creates a layout. With my other Shark robot vacuum, I was able to make adjustments to the map such as moving the sides of the rooms and creating subsections within my house. However, with this vacuum, it automatically tries to define the boundaries of the rooms in my house without complete accuracy, and does not allow for any manual adjustments. This seems to be more of a software / app issue, as it was consistent on both my android and apple devices.
Unreliable Mopping
Second, Shark's mopping technology also has many bugs. In order to use the mopping feature, I have to start and stop the mopping "job" at least 2-3 times for a proper start-up. Otherwise, when starting a mopping job, I ran into issues like: (1) erroring out after 10 minutes of trying to fill the robot's water resevoir, (2) the vacuum would arrive at the designated start point and clean the same spot until there is a massive puddle of water, and (3) leak water all over the base and bottom of the vacuum, soaking the components and dust collection bin. Overall, still seems to be more of a software issue that could fixed via an update. However, until then, the mopping feature is extremely unreliable and useless.
Design Flaw
Lastly, I am unsure if this is an engineering oversight or a defective product, but water from the mopping feature intermixes with the dust collected from the vacuum, creating a muddy paste within the dustbin area and within the filters. This cakes and coats everything, blocks filters, and creates a hair / dirt mess all over the internal components. Trying to clean this was very difficult and at this point, I don't plan to use the mopping feature anymore as it creates more work than saves. This ultimately leaves me with a normal robot vacuum which I could get for a lot less investment.
Overall Rating
Below is how I would rate the product in the following categories. This is considering my experience with other robot vacuums, as well as the issues noted above.
Overall Cleaning Performance - 2 out of 5
Vacuum - 3 out of 5, not as thorough as vacuum-only robots but still gets the job done
Mopping - 1 out of 5, feature unusable due to bugs and design flaws
Battery Life - 5 out of 5, can clean a 900 sq.ft. Apartment on a single charge (however this product has a feature to go charge and resume cleaning once battery is restored)
Noise Level - 3 out of 5, wouldn't run while watching TV or sleeping, but not loud if in another room
Maintenance - 1 out of 5, requires regular cleaning when using both mop and vacuum features
Versatility - 2 out of 5, good on different types of flooring (rug / wood), not good for using both mop and vacuum features