I got a .177 version (special order only) and had small niggeling problems from day 1.
Even though it was one of the newer guns occasionally it would blow open the mechanism (push the grip back), also as you took up the first stage the trigger would click. Not a problem as I wasn't using it for hunting but i would get used to it & expect it. On occasion it wouldn't click & the gun would go off before expected.

Then last week it started firing as I closed the action, or took the safety off, then it started not cocking at all. Suffice it to say it is now back with RWS.

Don't get me wrong, I love the gun, it fits well & before it started playing up performed well & at under 2Kg it's easy to carry, especially compared to my S10 rifle.

Ewok