Things I liked:Surprisingly accurate. Six shots to sight in the fiber optics. Using iron sights for on the go tree rats. Six shots after that, six dead tree rats. Checked the barrel for play because of some reviews I have read about them being loose side to side. Gamo must have fixed this problem because mine is rock solid. I have checked the mounting bolts and will do so on a regular basis. Only have shot it 12 times so everything is cool. Things I would have changed:The stock takes a little getting used to. Would have preferred the regular stock. But for $229 versus the regular stocked Whisper at $299 I can't and won't complain. What others should know:Gaa piston is the only way to go. The trigger is much improved from past versions but may still replace with a GRT-4.