I would rate it a 8 at most.
It has the power, but most of the rifles have a weak lock up problem, I have been playing with it for almost a year, I just learned to be solid when I close up the rifle. Also had a problem with the barrel pivot bolt comming loose, lock tite was the cure for that. I also had to send the scope back for replacement, every time you shot it got fuzzy, great service they sent me a new scope in less than two weeks. Rifle has good accuracy, 1" groups at 45 yards
Mine has a JM spring kit installed and that realy helped quiet down and make the rifle smoother.
I hear that crossman has fixed it on the latest ones.