Things I liked: It is a tremendous gun for the money. My son got a rifle and I got this pistol, and we can have fun together taking out targets (generally plastic bottles). It is handy that it does not require CO2 (and only requires a quick cocking motion to be shooting again). My son has to pump his rifle up to 10 times, so sure he's got accuracy and impact on me--but I can get a lot more shots off :-)
Things I would have changed: Nothing really--considering how inexpensive it is, it would be unfair to expect more (although I do wish it was more metal-based like a predecessor model my son has).
What others should know: If you don't expect more than is reasonable for a price-conscious model you'll be very happy with this piece.