I've only been using it for a few months. I've currently got KUK Bali Gold and red Maeng Da, and one of the whites. The BG is okay. From KB I have Red Horn, Red Malay and White Bali, all very decent (esp for the price). I haven't tried greens yet, I like the buzz from reds, and I have ME, so the whites are good for energy levels. I have something coming from Go Pure any week/month now, can't remember the order. Are greens worth a go? I need to taper off for a week or so, things aren't hitting s