Hello:  I too, am about to lay Real Touch laminate in the bathroom that I just finished in my basement. That same question has haunted me lately.  

I think that most any flooring would suffer with a flood;  however, if this product is cut, layed, and caulked carefully...then it should be as good as most other solutions (excepting ceramic tile).  

I plan to also use some wax product to penetrate the seams...although this might not be recommended by the manufacturer. Not entirely sure, but will inquirewith Dupont before I start the installation...hopefully next week.

I'll post with progress and will email pictures upon request.