This concept is a great idea.
Pity that it doesn't work.
Our bath is not that wide and by bath standards, it is the regular width of nearly all the baths for sale in most plumbing stores.
If the edges of the baby dam would actually seal to the curve of the bath where the base of the bath meets the wall of the bath, then it might have actually worked.
They need to make the bit that meets with the curve of the bath wall and floor a bit longer or wider to ensure that the seal is water tight.
Or just make the baby dam wider

This product is such a great concept for saving water, it's a real shame poor design lets it down. The suction cups are so cheap and flimsy, they just don't stick and hold the thing in place so when you fill the tub the dam lifts up at the bottom and lets the water escape. I'm constantly pushing it back down to try keep the water in.

Have been using this product for 2 months. The BabyDam would only work maybe 30-40% of the time. As stated by some other reviewers if knocked it collapses. I've even noticed it leak if you pour water into the dry part of the bath and the water touches the suction cups.

Wish I read these reviews before buying!
Great idea
Doesn't work in practice and is very expensive for what it is

I still think the good old baby bath tub is better. You still need to bend your back. With a tub you can put it away when guests come & easier to clean. With the dam, you need to tuggle with the suction when removing it & make sure it's sealed tight again when putting it back in. Make sure you clean it thoroughly, with any plastic stuff, sud and mould can build up around the edges.
Fits into any bath tub size.
Can be used for washing the dog.
Saves water.
Good suction.
Still need to bend your back.
Sud build up around the plastic.

Well I just don't like it. Too expensive for what it is (as others have stated, its just a piece of plastic) Lucky that mine was given to me as a gift, and I was very pleased as I thought it would be a great idea, but now I never use it, it just frustrates me! Always leaks, especially if you accidently knock it when the bath is full! Hoping anothe company comes up with a better design.
A great idea for water wise people.
Expensive to buy new, mine never seemed to seal properly, and leaks. Bathtime had to be done quickly before all the water escaped.