Things I liked:as a gun owner i can tell you this is not even close to a glock 17 it is almost a prefect copy of a 45acp Springfield XD. now dont think i am some fan boy i own a 17 and an XD and when put side by side the has the profile of a XD (1911) not a glock. but works for me because i like my 45XD more and this is almost a perfect copy. feels good good price i am about to buy a second one right now. Things I would have changed:i wish this would ship with two extra mags but it only comes with one but the mags a cheap anyways. What others should know:sounds great CO2 lasts a long time when using as a side arm not a full time gun, but i am sure it would work great for that as well.