I never tried it, and can't really pass any judgment, all I know that 2000 is better than 4000 because it have less sugars. Gainers are good to take immediately after your workout, still many will say to avoid them, but I would give them a shot. You try you'll see are they any good and beneficial. I used SciMentor's MassGainer because it's very low with additional sugars and I'm satisfied with it, although I'm going to try something different next time, maybe Ultimate Nutrition's - Muscle Juice or Prolab's N-Large...