I have an Expert in .45, its a good gun, accurate. Mine likes ball ammo more than hollow points. But from what I read around here is that the Experts need more break in time than a normal USP. 2,000 rounds I believe, and if thats true than my gun was not broken in yet when feeding those reduced recoil hollow points. Everyone who has shot my gun likes it. I have one friend who is a die-hard 1911 fan and once he shot that thing I couldn't get it back from him till he ran out of 45!
The only thing I don't like about the Expert is the plain black boring sights.