Folks fed up with the eGo-T's... join the cartomizer crowd. Seriously... I was going to go back to dripping on the old workhorse 510 attys before I picked up some dual coil cartos (madvapes has 'em cheap). The dual coil clear cartos don't look all that pretty, but they work awesome and did I mention they're cheap and there is no guesswork as to when you have to fill them ?
When I started vaping over a year ago I never thought I would be a carto gal, but these suckers on my eGo batteries are really pretty cool.
I order my eGo batteries from Cignot. They seem to have a pretty decent lifespan, 2 of them are going on close to 4, maybe 6 months old now, and as long as I don't abuse them they've been totally fine.
I also have an eGo USB passthru that I use when sitting at the PC, and that also cuts down on the wear and tear on my other eGo batteries. If you want a good alternate setup and/or the stuff you ordered doesn't work out, pick up some of the DC cartos and give them a shot.