I have an evic. What I love - passthrough charging, variable wattage in .1 increments instead of the usual .5, great screen that displays ohms, watts, battery life very easily, software updateable, good wattage range. I have had 0 problems with it, though some have. I sometimes look at other tube vv/vws but haven't found anything I think would offer more. I do have MVP2 & VTR, and was surprised how much of an advantage box mods are for not getting knocked over easily! But I guess that's an evic plus, I've knocked it over and off things ALOT and it keeps on ticking. A drawback would be the evic price is higher.