The only poly .45's that I have significant trigger time with are the XD45, Glock 21 and Glock 21SF. I was really wanting a Glock, but the XD was a way better match for my hands, so I bought the XD. I have somewhwere between 6 to 8 thousand rounds or maybe more through mine and if it isn't a semi-wadcutter, it's fed it no problem. Also, in my hands, it is more accurate than my Glocks and CZ75B (all 9mm's), and only loses in that department to my 1911 which costed 3X as much.
My 5" version is really too big for me to carry, but it's a great truck or woods gun. I ended up getting trigger work done on mine, as I felt that the stock trigger on mine (long, mushy, and creepy) was holding me back, but went too light in pull weight selection. If I could go back in time, I'd still have gotten a trigger job but would have selected 4-5 lbs pull weight.