When I saw the title of this thread, I didn't think I knew what a wet bath is. But after reading just a little I realized that I did know.
I spent a few years teaching at universities in China. Wet baths are the norm in China, and I think they are just terrible.
My advice would be if you like mopping up messes, frequently, then get a wet bath. Otherwise do it the western way with a shower pan. It's much less trouble.