Tl;dr - I couldn't get it to work for me in most situations.
I could get it work with smaller guns like the Shield or a J-frame, but even when I used the right holsters from serious AIWB makers for full size guns, I just couldn't get it to work right. The biggest issue for me was a combination of concealment and comfort. No matter what holster/gun/belt combo I went with, I'd get either unacceptable printing, and discomfort when seated/bending over to tie my shoes.
The other big reason I switched back to traditional IWB is because I spend what little practice time I have these days on mostly competition shooting, so that means all my draws come from strong side 3-4 o'clock anyway. Having a different carry position for every day CCW didn't make a lot of sense to me; and it makes even more sense for my carry position to put the gun in roughly the same spot it goes when I'm practicing for a match.