Borrowed this USP from a friend to try to decide between it and a Glock. It's a really nice handgun, not sure if the extra $400 or so for the USP is worth it though. Either way, it's a great looking gun, so I took some pics of it.
The USP is a good pistol, but I never liked the mag release. I think the Glock is a better and cheaper pistol.
I think I'd be able to adapt to the mag release if I got one. I shot it alongside the G21 today, they're both really similar. I prefer the USP, but not by much, I think I would be just as happy with a Glock.
I'd spend the extra $400...