I would NEVER use his injectables........too many risks.
But I am currently using the 50mg Winstrol (winny) tabs. After a week of use, they are definitely legit. The only problem I have heard of in the past is that they can be underdosed. But you know what, even if that is the case, I got them so cheap that it isn't gonna bother me much.
Would I go with them again, probably not, there definitely are better choices out there. But if thats all that is available, its not a bad decision.
I'm not even sure what IP products you were referring to, but like I said, the Winstrol (winny) is ok, the injectables.........take at your own risk.