we prefer the wet bath:
Easy to dry, just drag a squeegee over it. (which we also use in the shower in our dry bath 5er).
we have an adjustable towel rack we can put in there for drying towels and stuff. ( It screws to adjust size, I put it up high at top of fiberglass).
easy to clean up if someone misses the toilet, just hose it down.
If its raining and you need ventilation, just open the vent in wet bath, and suck air out with the fantastic fan. any water leaking in goes into wet bath. (also can open the front window against truck but that leaves no air movement in back of coach)
For dry towels, just hang it on the rear door, open shower door and reach out and its there.
we switched to a material shower curtain from AB lifestyles
We put down a rubber mat to slow down scratches on fiberglass floor from boots.
not related, we also just added an oxygenics shower heat.