I also did not need one, but bought it because it looked cool. After several hundred shots of break-in, it shoots great for short range plinking like you're talking about. Cocking is easy. The trigger is a little stiff. Accuracy is as good as some of my more expensive guns. You need a scope stop for a scope or red dot.
I got mine from South Summit. Just Locktite the forearm screws and glue down the scope rail, and you're ready to go. The definitive review of this gun is Todd Cooper's at:
http://my.tbaytel.net/~coopers@tbaytel.net/XS-B3%20Review/Have fun!