Hey Mike.dunning.37, I've had the vaporshark Rdna that is absolutely fantastic, I also just ordered the KangerKbox, I'll let you know how that goes a little later this week; looks promising!
I have the istick 30 and 50. (Just don't charge it with a tank on it, that's where many of the problems have come.....leaky tanks) Love them both. I use them or my IPV4 in Temp control. I saw VaporJoe pimped the istick 50 for $39. I don't think you can beat that deal.