its not something we would have known to purchase, but my mom had one floating around at work so she brought it over one day when we were desperate to stop his screams. it has been awesome, not so much as a place to bathe him, but as a way to soothe and calm him. we use it at least once every day.
he is pretty squished in the tub, and its hard to reach in to clean all his dirty areas, so it isn't ideal as a bath, but it certainly comes in handy as a way to rinse him down after a massive diaper blowout.
the tub came with us on our trip last weekend, and would definitely be on the top of my list to recommend to new parents. (right behind the yoga ball that has become essential furniture in our living room!)