Well I have taken Testofuel for 4 months (Feb - May 2015) and I noticed that I just naturally started getting muscles and getting stronger, especially in my chest and arms (upper body). And the funny thing is that I wasn't going to the gym at all, the most I would do at home was push ups on and off, wasn't every day or too often. There's only 1 issue I have with it and that's the ingredient Fenugreek, it blocks testosterone from converting to DHT. I didn't want to take anything that would lower my DHT, so I didn't order after those 4 boxes were finished. But I just ordered the next 4 month supply and noticed they come in bottles now. I'm going to order additional 4 month supply for my dad, which I'm hoping will give him strength because he's in his 90s, still walking and doing stuffs by himself, so let's see how it will turn out.
Bottom Line: Yes, I would recommend this to a friend