Decide what are your priorities in a battery. Do you want variable power? Do you want the longest battery life? Do you want the smallest/Stealth packaging? Do you want colors? What are you going to use as a topper? Do you need ego cone threading? Think about these things first, prioritize them. If you want all of them, then a vv/vw kit with tubes or telescoping may be right for you. Get the Sigelei V3 for best flexibility. If you want colors, try the anyvape CVI or the Sigelei mini. If you want the least expensive model with all the above, but not in colors, choose the VAMO. If you are like me, you'll eventually want and may even collect all of them. You can buy three or four of these suggestions for the price of a provari. If durability is the most important, definitely consider the provari. If tech is the requirement, try the eVic. See, it's what YOU want in a battery that will guide your selection. No one setup or device will satisfy me. I use several during the day, including my twists/spinners when I'm out, and I love all of them. The journey is what keeps it all cool for me. I think I love the gear as much as the vaping, and I love the vaping. So decide priorities and budget, it's relatively easy after that. Remember, there is no answer to the question, "what is the best pv?" It's subjective, and unique to each user. If my budget were $50, then the VAMO. If $75, then the Sigelei V3, Sigelei mini, or anyvape CVI V1. If $100, then the NEW eVic or Sigelie V2. If $200, then two or three of those and if $400, then a provari and two or three of the others. Fixating on the my wish list items has been instrumental in keeping me vaping and off smoking....and that's the real bottom line. By the way, I have everything I recommended. There a dozen clones for everything mentioned as well. Be careful also. The lesser expensive units are not as durable. If you can only buy one pv in a lifetime, then the provari. But that's silly. You'll likely buy many as new ones are coming out all the time. Like another poster mentioned, go see them yourself. My favorite is not the most expensive or the least expensive, it's the Sigelei V3. In a few months it'll be something else. Six months ago it was the eVic (no durability - lost two). You like what you like and there's no accounting for it sometimes. It is what it is. Good luck! The search is at least half the fun.