First of all this is a great gun. It feels solid and has a nice weight to it. The magazine is solid in the chamber and doesn't rattle. The pistol grip safety feature actually works too.
I did run into a problem however. There is an 'attachment' at the bottom of the included magazines that has the side effect of making the fill hole for the gas rather deep. I had a regular can of green gas and the nozzle would not fit that deep. WC definitely considered this problem because it included an adapter to extend the length of the nozzle on the green gas can. You do not attach the adapter but instead place it on the nozzle then place it on the magazine.
Anyways, there is an o-ring inside the adapter to prevent gas leaks. I was only able to use this thing once or twice before the o-ring broke. So now I need to find another o-ring.
The upside to all this is that I had a friend who uses propane and had an airsoft propane adapter. This was long enough to reach the fill hole in the magazine so if you use propane and have one of those adapters the included green gas can adapter is not necessary.
Lastly, as a purely cosmetic issue, the pictures do not show an orange tip, but it comes with one. It is a plastic piece that appears to be glued into the outer barrel and thus cannot be removed as far as I know. So if you do not want the orange tip you'll have to buy a new barrel. I don't begrudge them for having an orange tip included. Its the law in most places and its also for safety so some dumb kid doesn't get himself shot on accident by police.
Solid all around. Very well built.
Grip trigger safety works.
Included rail is a nice touch.
The included green gas can adapter might be flimsy with its o-ring.
The orange tip being glued in place, and thusly not removable, might be a turn off for some folks.