I have one and love it. There are some potential issues however like losing zero but I have not come across any problems so far. The rifle is completely dead to shoot and groups are amazing. On the chronograph I am getting a spread of 4fps over 40 shots at 11.73FP with JSB 4.52.
I would post a piccy but don't have a clue how you do it or if you can do it!
http://i1034.photobucket.com/albums/...G_0370%201.jpg
See if that worked!