Awesome. Got mine from Nicotine Nirvana for their July 4th $57 dual kit (thanks halonut!!!) and have been using it for a week now. Absolutely love it! I actually prefer to use it without the atty cover because of the "sweat" buildup...and the vapor production is still great. I saw the eGo mega atty/cart and want to try it (vs. the 510 megas)...especially since it's the same diameter as the battery, so the appearance is much more attractive then the 510s. Anyone using either eGo megas or 510 megas on the eGo? I'm looking for some good input and a good (i.e., cheap) supplier. Thanks.