My friend recently got one. Its got a light "fake" feeling (I suppose just different)unlike the other metal slided glocks I've used. but the performance wasn't bad.The ATP is made by KWA and it's a very nice sidearm, but you can't blame TM plus I don't believe that the $600 upgrades he's done didn't include a metal slide!
I like Glock's and the looks are a crucial factor for me, the ATP from what I've read is a very nice pistol but it doesn't exist in real life so I don't want it!
Wolf