I used M-stak a while back, and I wasn't a huge fan of it either. For the money, there are many better options out there to choose from. If you're taking a break from PH's and looking for a natural boost, I would recommend Alphamax XT. It contains an ingredient profile to help increase natural test, as well as a natural AI to limit cortisol and estrogen levels. Alphamax XT also contains forskolin, which has been studied to increase lean body mass while decreasing fat mass. It also contains Ashwagandha that can improve recovery and reduce stress. I think a product like Alphamax XT would be a better choice to put your body and hormone levels back into a healthy state. PH's (depending on what you were using) can be very hard on your body, so using a natural product like Alphamax XT can be very beneficial while cycling off of PH's.