Not saying it's not effective. It's not that at all. It sure as hell did the job when I ran dbol, with test as my base. It kept me from getting any estrogen related sides.. However I don't think I'm gyno prone, even being heavier set and if I were to get full blown gyno, It would just make me uneasy to treat it with X compound unless I saw someone who knew what they were doing.
Now if it came down to me not being able to find a specialist, or not having insurance, yes I would try it out. I mean if you don't have insurance and you need to have surgery, you're f**ked so if that were the case I would run the forma until I saw some improvement, then taper my dose down to come off. Definitely not as harsh as the prescription grade CANCER medications out there (adex, etc)