Things I liked:Accurate, powerful. Things I would have changed:Stock design. What others should know:Stock, made of plastic, fastened with only one screw that supports the whole gun that is quite heavy, is inherently unstable and in my case it moves up and down for about half inch. It's very heavy with scope. It's loud, not suitable for backyard use.
Things I liked:Accurate with the right pellets; quiet enough for backyard plinking; nice dimension and power combination; cute looking. Things I would have changed:Fill gauge inaccurate (300 psi +), as have been commented by many reviewers, needs better quality control.
male adapter cover loose, needs better design. What others should know:Picky on the type of pellets you've chosen. The best pellet i've tried: .22 JSB Jumbo Exact 15.89 grain; Very easy to fill up with Hill Pump; 2000 to 3000 psi, two sessions each session 5 minutes. At power setting 6, you could get 50 good shots. It's not as quiet as Air Arms rifle, but quiet enough for backyard use.