I would echo Erics comments.
The trigger is nowhere near the quality of the HW40 even after a little tweaking but overall it's a very acceptable pistol. I put a couple of dozen pellets through one at the club a few weeks back and was getting scores close to my 40 (Disclaimer: I'm a crap shot )

Watch out for any advertised as "Been out of the box once", or rather snap them up quick at a bargain price and strip and assemble the compression cylinder the right way round

QC? What QC?