Easily one of the most comfortable pistol blaster that I have used in a long time. I found that trying to use some of the worker 'stefan' darts would cause a jam, but they were easily cleared.
I also found that removing the clip from the holster, unless you are pulling straight out it can catch, but I sanded down some of the joints and this has been mostly eliminated.
The upgrade spring was super easy to fit, as were the o-rings.
Some of the handle has a cool steel feel to it and I love it.
Hard to pick what to get next. Another of these perhaps?