imo The REO is not for you. If you don't want to rebuild anything and have more of a "fill the tank and vape away" experience, don't go with a REO. ProVari is obviously a great APV, however it is expensive (roughly $250 each). My vote is for the MVP2. About $50 each, great battery life, well built, well priced, you can even charge your phone on it if you're in a jam! If you're not a fan of the box shape/feel, an SVD, Zmax, Vamo, or eVic. The tanks you're using should be fine. If you're looking to upgrade, maybe a Protank-3, Aspire Nautilus, iClear 30 are all good options. Keep in mind all APVs (Advanced Personal Vaporizer) are pretty much the exact same thing but look different. They simply put out an electrical current. Assuming they're VV/VW (Variable Voltage/Variable Wattage), other than aesthetics and warranty, they really isn't much of a difference between them. At all. Others can and will argue that. As far as tanks, different models have their advantages and disadvantages. Do a little research on the ones I and others recommended in this thread, one of them will do just fine for you. As for your "hot" vape, just turn up the voltage/wattage and you should be fine.