Things I liked: Great rifle for the money, very accurate if held correctly. The stock is extremely comfortable and it's effortless to switch grips from left to right. Extremely lightweight and fairly quiet.
Things I would have changed: This rifle can have a little more "buck" to it than what you would expect. If it seems to kick harder than usual check your scope mounts immediately. The recoil plug on mine was defeated and severely damaged rendering using a scope useless. Been going back and forth with Gamo for a few days now and it's a long fight even though it's within their warranty period. Also ditch the base scope mount right away, it will move on you if you're not careful.
What others should know: The scope that comes with the rifle is decent for the money. It's a great starter scope especially if you're teaching a new shooter. But if you want to be more precise with your shots be prepared to buy a new scope soon.