No problems with the Tub at all. I do recommend it. It does need full bottom
support so build that into your design.
I could see problems if your drain/supply holes were cut to tight to the fittings as that could cause a crack or wrap in the plastic. I thought I'd be clever at cut the 1st access hole tight and attempt to tap it with the threaded fitting. BAD IDEA
I caught the flex on the 1st quarter turn and stopped.