Kind of hard to describe the Powerfull. The biggest thing I noticed was incredible deep sleep, which being older (54) and having weird sleeping patterns, I greatly appreciated.
I noticed significant strength and stamina gains in the gym. I also was taking Cissus and Kre-Alkalyn and N.O., so those undoubtedly contributed also. At my age, I am not overly concerned with being "ripped", but like to maintain strength and power. I can work out much the same as when I was 30, maybe even with more intensity, but not as heavy so to avoid injuries.