I've heard of the Vamo having some meltdown issues if the kit comes with flat end battery's instead of button batts. There is a loss in connection and the buttons appear to keep the connection tight, so if you do purchase a Vamo, make sure the batts have buttons. That's the only bad thing i've heard. I've thought about buying one myself, but I'm still waiting for more info to come out first. Tho it may be inexpensive, will it last, or will it melt...rather wait until they fix the bugs. Now, the eVic is exciting and I can't wait to get mine...co-op style...