Well, I have an Odysseus including the upgrate-kid and I have two ego-twist vv-batteries.
Let me begin with the Ody: Before I got it, I always thought that it´s just a good atty with a higher level of status. Now I can tell you, that it is the most complicated repairable atomizer I own, but it is the best one, too. It has the most tasteful flavour I ever got with an e-cig. On the other hand it is a pretty expensive "piece of metal" at the moment, because you have to buy it second hand, and the price is more or less 200% of the original sales price. Nevertheless I am happy to got one! I own it now for a few weeks and I still learn new details and possibilities every day. Hope that I will master it with all it´s options very soon. ;-)
Now a few words about the eGo twist. I ordered 2 silver batteries , 1000mAh. The voltage is between 3,2 and 4,8 V. I like them very much for my outdoor activities. The aspect of the variable voltage, the thin shape and the capacity of 1000 mAh makes it a solid and helpful companion, especially in combination with the repairable atties like the Genisis Line, and the Bulli A2-T. Even the Genisis GLV works pretty fine on a Twist. I am sure that I will buy some more of them...