I have four USP's. They're either Tactical, or Expert models. Selected them because they have match triggers and "O" ring barrels. Accurate and reliable. Also have a Mark 23, super pistol, fun to shoot. Wish the trigger was about 4 pounds, like the match triggers, instead of somewhere around 7 pounds.
USP's have an almost cult like following, as appears to be the case for all H&K weapons.