I have one mate and despite the bad press the Mk 1's had with leaks and seals going all the time the S16s ( shrouded version ) which I still own has'nt been a bit of bother. I've had it since last October and it's had some stock of pellets through it and many a rabbit etc has fallen to it so speaking from first hand experiance I can't fault it apart from being a tad on the heavy side. I now own a HW100 but have still kept the S16s for a second gun, here it is,
Regards
Coney.