I was taking havoc at the same time. I am also different than most that just start on here too when it comes to supps because of my weight. My weight went from 230ish to about 240ish over the course and I also lost BF at the same time. BF didn't drop anything crazy, I would say maybe 2% which I don't mind at all, but thats because of my clean eating and probably more because of Havoc.
It's results can be quite varied. It is an effective product, and although AA is linked to certain health issues, if you are healthy it is safe. The soreness can be intense, as well as joint inflammation (it is recommended that you don't take anti inflammitories while on it to maximize it's benefits, although recent studies contrast this).
I would say that 10-15lbs would be on the high end, but gains of 5 lbs and improved body composition and strength are very realistic, if your training and diet are in check. And although some people experience no gains, I would say gaining MORE than 5lbs of muscle is at least as likely.