We use it a lot. If we've been in an anchorage for more than a day it's better to heat some water on the stove and pour it in the pump than to run the engine for hot water. We like it better than showering from the solar shower bags, but we also use those bags to heat water to pour into the pump. We carry the pump into the head and shower there, or shower on the transom. (We also wash the dog at the transom after a day at the beach). We use the built-in shower in the head less than half the time.