Been on Cardarine for 3 weeks now, it's great. But I am taking it with two other items (letro and nolvadex) so not sure if cardarine alone is causing the effects. I'm 175, 5"11. I've lost a decent amount of side fat and belly fat. Almost have abs, it's insane but I do workout 6 days a week, sauna , and stairmaster for 30-45 mins.
I've been on a strict diet as well, no junk, gram of protein per lb of body weight. Oatmeal, fruits, meat, that's about it. Now energy wise, I don't really see the difference but I never had any issues with endurance so can't be sure.