I have a Bruin, there is a lot of hand shock that can be corrected with an sts, but it is real easy to pull and shoot. As far as a sting breaking, if you bought it from a dealer, PSE will replace it. To say PSE is bad because of it well that would be like saying all chevys suck because you had a problem with one. These are massed produced and all co. are going to have a few that get problems. As for whether or not to buy the bow.
Well at that price you better jump on it before its gone.