Things I liked: I own an actual Walther P99c 9 mm. For the casual observer, they couldn't tell the difference between this and the "real" gun. The blowback action and the slide locking back when out of ammo make this a very realistic and pleasing expereince. It provides some very realistic practice without having to go to the range and spend a lot of money on ammo.
Things I would have changed: I need to look into some kind of loader for the bb's. Right now I have to load them individually into the small hole and it takes a lot of time. Haven't found anything that allows a quick load as yet. Maybe Pyramid Air can put some recommendations for a loader in the accessories.
What others should know: Not as powerful as a pellet gun, but a lot of shots from one magazine and is fun to shoot.