Things I liked:The red dot sight is easy to use and is sighted in right when you get it. It fires very accurately at close range. The gun is very well made and easy to use. Things I would have changed:I can't think of anything. What others should know:The double action trigger is slightly annoying to use but you get used to it. Buy lots of pellets and plenty CO2 cartridges... you'll go through them all.
Oh yeah, Walther and Crosman don't do the repairs on this gun anymore so you'll have to go to the Umarex website instead for any inquiries.