I have one in .45 caliber. Here's my take on it:

Pros:
-Cheap
-Accurate
-Not fussy about loads - shoots almost everything pretty well
-Light

Cons:
-Cheap
-Lots of blowback - get a sock for your scope if you scope it
-Very heavy trigger pull
-Fairly difficult to clean because of all the blowback in the breechplug/bolt area

Overall I like it, but I would like it a lot more if it had a decent trigger. It has the heaviest trigger pull of any rifle I've shot. But it still shoots 1.5" groups with that bad trigger.