Here is my situation...
I am about to install a one piece neo-angle shower in a corner with 2 exterior walls. I have determined that this may be a problem in the future if any work needs to be done on the plumbing behind the shower. There would be no way to access pipes except to remove shower or cut through exterior of house. Two things that would be major headaches.
How big of a problem am I getting myself into?
Keep in mind space is very limited and using the exterior walls are the only way the shower will fit.