Very efficient vape. This is the best vaporizer I own. I have had Davinci 1, 2, and the Haze V3. The Force is in a league of its own. Their customer services raises the bar. My wife and I are going to buy the smaller device because we love the force so much. Whether it's a little or a lot this vaporizer delivers. Don't get caught up in that brand war stuff. Healthy Rips devices are uniquely designed. Do your due diligence and see for yourself. For the great price and efficiency, I would give this vaporizer 5.5 stars. I use this vaporizer 6-7 times a day , everyday for over 2 months and not one problem. My other vaporizer couldn't deliver the same results.