Things I liked: gun is fairly light, and comes with a better quality scope than I'd expected at this price range
Things I would have changed: fit and finish somewhat rough, fiber optic insert in front sight is quite dim as compared to rear insert, has annoying vibration/noise on discharge (which I hope will smooth out as gun breaks in).
What others should know: muzzle break/muffler does largely eliminate "crack" of pellet discharge, but spring power plant is very noisy, so overall is not as quiet as I'd hoped. an older Diana spring air gun also rated at 1000fps, used with heavy .177 pellets, is not significantly louder balancing muzzle "crack" vs. powerplant "scrape/bong".
Things I liked: feel is much like the Glock pistol it emulates,other than weight, so seems a useful tool to help maintain proficiency. certainly more concrete feedback than dry practice. not bad for quick and close work.
Things I would have changed: Front sight! Large, block painted entirely white (unlike Glock), is very difficult to line up on any light colored target, and is too wide for rear sight notch. Trigger is poor, but no worse than other CO2 guns in this price range I've used.
What others should know: Mediocre accuracy and overlarge front sight make this not quite the gun I'd hoped, but 8-shot capacity, power level, and "feel" do make it fun. Just recognize it's limitations beforehand.