This was my first PH cycle. After doing about 1 month of research I decided on this product through forum and misc research. Strength gains were noticeable in approx 2 weeks, 5 Test gives a nice energy boost and I did not experience any sides. I'm currently in week 2 off my PCT and all is good. I didn't do any measurements but my wife, trainer and friends all notice size increases in my back, legs, arms and crazy improvements in my triceps. I'll be doing this same stack in a few months!