I've also been looking into this stuff called GW501560 aka caradine it sounds awesome.
Yes if you get a quality source. My first batch from a company was amazing. Cardio endurance increased. Lifting endurance increased. Cut some fat without changing diets.
The second batch from them seemed to fall way short. Way way short. So I don't know what I'll do. Because of their price, I probably won't risk buying them elsewhere and stick to the aas lol