The only thing you will get here is opinions. In my opinion, it has the "possibility to work well for some people and not for others. I am a believer in herbals if they work. And a whole lot of them work for me. The bottom line is that you need to try it to see how well it works for you body. I would have the usual PCT's on hand (nolva, clomid) and try the OXO but at the first sign of distress, get on the real stuff.
I have used "Post cycle" from Protien factory as PCT behind 2 cycles. Ans 8 week Sust cycle and a 10 week Sust/EQ/Var cycle. I used HCG on the second and I recovered well IMO (and bloodwork). But I also used HCG and absolutely nothing else behind 20 weeks of Test Cyp @ 150 per week and also recovered well. So it is up to the individual.
Always have the real stuff on hand just in case.