LeanEnginner and John are correct. It really depends on your goal. FD2 is a great product. As far as pure results go, MassMax has seemed to give great results in terms of pure weight gain hence why everybody says it’s better for a bulk.
I actually enjoy it on a cut as well. Allows me to keep my appetite high enough to eat the lean foods that are required for cutting. I’m not the norm, I know but it works for any goal for me. I just change other supplements around (for example, adding forskolin, slinmax or AlphaMax) and change my diet.