I just received one of these today from fasttech, called their "V3 MOD Telescoping Electronic Cigarette Battery Compartment" and got it along with a pair of "Panasonic NCR18650 Rechargeable 2900mAh 3.7V 18650 Li-ion Batteries" and a "Portable Digital Battery Charger for 18650 Rechargeable Batteries". The batteries came with a charge on them, the charger seems to work, and the grand total to my door was just over $33. I placed the order on 8/6/2013 and it arrived at my house this morning, 8/17/2013.
I got the solid brass "gold" model, and so far other than one small issue I am very impressed with it. It is very heavy and solid as an army tank.
The issue I have is that my Kanger Protanks do not fit on it in a way that allows any air draw at all. If I unscrew them a bit and or unscrew the MOD's parts a bit I get a draw, but screwed in flush, with the MOD parts screwed tight, it is airtight and you can't draw on it at all.
After some tinkering I solved the problem by drilling out the Kanger base air holes slightly (the holes in the 510 threading), and using an EVO/510 adapter screwed into the MOD, also expanding the air holes in the adapter slightly, and screwing a beauty ring onto the adapter (also with 2 air holes drilled into it). Problem completely solved! I can get air thru it, and it all fits solid as a rock and has a very nice steam-punk look to it.
The problem I experienced was probably due to the 510 threading in the MOD being flush with the top of the MOD itself, rather than being a design that sticks up a bit, like in an EGO. This in no way is a bad thing, and with other tanks may not be an issue, and I was able to fix it quite handily. If I did not happen to have an EGO to 510 adapter sitting in my e-cig supply box it may have been a different story.
It vapes just fine, and is my first MOD so far, my having been using a pair of 1300mAh EGO type batteries with Kangers for the past year or so, and I have no doubt I will be able to vape all day on it.
Pick up the the RSST and use SS cable and your set for life.