I've been using the NutriBullet for a week now, and I have already seen such a difference in my overall health and energy. I'm able to consume more than my daily amount of vegetables and fruit easily, and in a really tasty way. I have dropped almost 2 pounds simply by having a smoothie at breakfast and continuing to eat normally (and relatively healthy-- I still splurge on a burger once or twice a week) for lunch and dinner. I have been in the process of counting calories as a weight loss/maintenance plan, and I will say that with a proper plan for calories in/out, daily activity (I've been walking between 6-10,000 steps daily), the NutriBullet is an excellent tool for reaching your weight AND healthy eating goals. AND I can't stress enough how easy the NutriBullet is to use! I buy ALL frozen fruits and vegetables (aside from apples, carrots, cucumber, and celery), and I am a fan of almond milk/nonfat Greek yogurt for the added protein, and my smoothies are done in a matter of 3 minutes, start to finish.