Ew, my wetsuit has a p valve. I hate pee smelling suits.There are two HUGE positives for me with diving wet. Don’t have to trust the airlines with my pretty purple drysuit. And I don’t have to worry about the She-P and getting the plumbing correct. It is a very exact thing. Not having to worry about the She-P is a huge thing. I can just drink as much as I want to stay hydrated in the heat and humidity and not have to worry about leaks and having to wash drysuit undies.
You might consider fitting one. It is a great way to get experience fitting and using your she p. If you have a seal issue or a leak, it isn't an issue, but if it works for the most part, you will cut down on skin rashes and stink.