Very pleased with this kit. Superior build quality, Zenith tank is the best for mouth to lung, no leakage and full compatibility with a wide variety of Z coils. Battery life is good, not the greatest, but will last for about 6 ml of juice at 15 to 20 watts power. Overall, this is a great kit, with a much higher quality than most kits out there. After having bought many kits over the last few years, from different manufacturers, Innokin is now the only company I am buying from.
Holy wow - this unit packs some punch! I had a variable voltage unit before, and wanted to continue with the option of selecting my "power" but was unprepared for the power of the Coolfire. Wanted to review after having unit for a few weeks. It keeps an ok charge, but have to plug in a least once during the course of the day (some times twice). Charges in a couple of hours, so that's pretty good, and you can use it as a "passthrough" while your charging - very nice! Very satisfied, even while selecting the lowest settings. Would buy again, no hesitation - thanks, Brett!