Unfortunately the cordless units battery compartment is not water tight. RUST O RAMA EWWWWWW !!! Blech !!

Nice combination Water Pic with AA battery powered travel size as well as home size one. Both work well.

I love my waterpiks. The cordless one is great in the shower. When I use the corded one you can see what comes out in the sink even after brushing. Very easy to use.

The basic water pic that's plugged in is great but the battery operated one only holds a charge for a couple days and the power behind the spray starts to decrease. Not thrilled with the product but it is better than nothing

Bought this because my rear molars are all kinds of misaligned, and food bits gets stuck in between there after every meal. The large stationary Waterpik works well. Absolutely love it. The power is robust (I keep it at 7-8, 10 can be painful if blasted right in the gums) and it knocks all the food loose with no issues. The small, mobile waterpik is... not amazing. The flow is weak and the capacity is low. But the worst thing is, it doesn't even suck water 90% of the time. Half the time, I have to turn it off/on, blow out the suction, or even hit it like I'm in a cartoon to get it to function. If I had to review both units individually, I'd give the large unit 5 stars and the portable unit 1 star. So I'm averaging it out to 3 stars.

Works well after getting used to it. Am trying different tips.

Great pick, clean very well.

I love the way my teeth feel when using my water-pik!

So far everything is working great.

Much better dental visits since I used it. The dentist and hygienist asked what I was doing different!