Awesome!!...however, there are moving parts and when there are moving parts, each moving part will eventually need to be greased, adjusted and replaced.
Glocks have moving part and unlike any other and very fun to shoot but after each shot, one must re-aim very very fast if your are in the mood for rapid fire. Each time I use my Glock 17, I notice, re aiming because of the blowback...because it gives such a nice jolt rush from the gun itself;..so much fun.
Another thing I found was each shot takes more air from our most beloved CO cannisters than non blow back guns so, you give and take...your air cannister empties sooner than non Glock.
The FPS is a little smaller than non Glock too and, at the end of the day, the force it take to jolt the gun like that to give you a rush each time you pull the trigger
is not free. What a fun pistol to have around.