Personally I dont think it will be a much of an upgrade. It is a nicer PV and will give you alittle better battery life, but its still basically a slim ecig. With that youd still be limited to only using sranard resistance attys and cartos, just like with a slim ecig. The 350mah
batteries will be alittle better, but 350mah is still generally pretty low and will need to be recharged every few hrs.
And for what it is, i think its overpriced. For $50 you can get a much nicer bigger battery PV that will allow you to use low resistance attys and cartos too and the battery life will be a LOT better.
Check out the kGo, E-Power, and newer Riva. They are all 3.7V and have 510 connections. Any of them would be the same price or cheaper and are def a better kit. I have an E-Power and love it. Everything is replaceable on it so its cheap to maintain and the E-Power
batteries cost $45- compared to eGo/kGo/Riva
batteries that cost $14-20, and this is because the E-Power uses non-proprieraty batteries, like mods do.
If your looking for a night and day difference, go with a bigger battery PV like I mentioned