Things I liked:Very impressive piece of engineering, excellent quality at a reasonable price. My combo came with the sight already mounted, and right out of the box it shot extremely accurately to 50 ft. Even with a steady crosswind the Walther sight could be adjusted well enough for this gun to hit cherry-size targets at 60 ft. The action is superb, very tight and reliable. I am thinking about buying the base model with open sights for competition shooting, Things I would have changed:As others have noted, the hollow stock makes the gun too light. I solved this problem easily by squeezing a 10-oz tube of silicon into the stock. The gun now has just the right amount of heft. What others should know:Extra magazines a must! Everyone I know, including the ladies, loves to shoot this piece. Regarding ammo, I have used all types and makes of pellets and have not found any significant difference between them. In the cold I can shoot one magazine accurately before the pressure drops.