Things I liked: Power - accuracy with the stock sights - right on target each shot. With a scope its awesome. Easy to load, clean, fire and show off. Folks cannot believe there's a 50 cal air rifle.
Things I would have changed: Can't think of anything.
What others should know: Full tanks you'll get about 6 good clean high power shots. After that, another 4 or so at good velocity - carry a refill tank with you as the pump will take forever!