I call it "whole foods" and not "clean eating" but yeah, I lost weight and am keeping it off with a combination of eating whole foods and calorie counting. I try to avoid as much processed foods as possible and concentrate on eating a mostly plant based diet
I'm not perfect and I do buy a lot of convenience foods (salad dressing, whole wheat tortillas etc) but I try to buy as much organic "box" foods as possible and I eat a TON of produce.
The only reason I could think NOT to do it is it takes a lot of time - cooking, shopping, packing lunches, etc. There is also some social awkwardness - I don't eat fast food, I don't eat packaged baked goods, I don't eat chips, pretzels, etc etc so sometimes I feel like I don't fit in.
Overall, my health is stunning, my skin is gorgeous and I lost 70 lbs and have kept it off for 3 years, I would highly recommend a whole foods approach. Feel free to join us in the Whole Foods forum!