Things I liked:The feel of this pistol compared to the SIG firearm is extremely realistic. The quality of the construction is outstanding. The trigger is exceptionally good. Point of impact of the BBs is very consistent - it was easy to shoot small groups at 15-20 feet. Things I would have changed:I would prefer not having to use a tool to load the co2 cartridge. What others should know:After several co2 cartridges, the co2 system stopped working properly. The gun did not consistently load the bbs, the slide did not lock back when the magazine was empty, and the gun frequently vented the remainder of the co2 cartridge when I finished shooting the first magazine. I assume this was a problem with my individual pistol, not with the model itself. Fortunately the problem showed up fairly quickly so I was able to return the pistol under Pyramid Air's generous return policy.