Things I liked: The style and power that this rifle has, was the selling point for me. The TR77 was bought as a step up from a Pumpmaster 760. I didn't want to pay a lot for a decent air rifle that would be for target use and/or the occasional groundhog.
Things I would have changed: Iron sights should have been put on at production for user to have an option.
What others should know: Like others have said...2 inch groupings at 15 yards and 3 inch groups at 25 yards using Crosman Hunting .177 Cal, 7.4 Grains, Pointed pellets. I'm happy with that.