Things I liked:Everything!!! This is my forth air rifle and the most expensive, but without a doubt the best. I am 68 years old and I am in hog heaven with this rifle. It is a dream to shoot,and right out of the box ,it is a nail driver. The other thing I noticed right away, is that it will take a medium quality pellet and shoot it with the same accuracy as a more expensive one. I have been shooting it daily ever sinse it was delivered. What a great gun!!! Some have complained about the weight, but I think that it helps hold the stability against the recoil. Things I would have changed:Absolutly Nothing!!!