Dave, I have had a urostomy since February of 2020. I use a one piece Coloplast bag, and it works well for me. I don’t think I would like dealing with a wafer. The bag only needs changing (for me) twice weekly. I have no problem with skin irritation, and use plain (no moisturizers or scents) liquid Ivory soap to clean the stoma while showering, being careful to cleanse the stoma last, since my shower gel does contain additives, and I want to clean that off the stoma and surrounding area so the pouch will adhere well. I like that the Coloplast pouch has a couple of little slits in the outer layer where the drain spout can be tucked away to make it less obvious. (I must confess that I did not discover this feature until I had been using that particular bag for over a year.)
Once I learned about not using a soap with moisturizer, the pouch adhered correctly, and I no longer needed barrier strips. Living in a hot, humid climate, I do find it more comfortable to use baby powder underneath the pouch, but wait to use it til the appliance is adequately adhered before using it.
Hope this helps you a bit.