I ordered both the v2cigs.com (KR808D1) ultimate kit and the greensmoke (E9)kit, figuring I'll try them both and return the one I like less. I received the GS kit first, so not knowing any better thought it was really good, and quit analogs on the second day of vaping (after smoking for 15 yrs, I couldn't believe how easy it was, but that's for another thread

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When I got the v2cigs kit, it blew away the greensmoke!
-First off, i had to use super human suction power to pull a drag off the GS cig...to the point that my lips started to hurt. I could just imagine the wrinkles that the thing would cause over time...don't want that!
- I thought the GS carts were ok until I got the V2cig kit. The v2 carts taste awesome, and the GS carts were just blah.
- There are lots of cart companies out there that sell kr8 compatible carts, whereas there are only two companies that I could find that sell carts compatible with the GS E9, one in China (ecig.com) and Lecig.com
-The kr8 batteries seem to last a LOT longer than the e9
-GS only carries auto batteries, where v2cigs has both manual and auto...so since I didn't know the difference anyway, i ordered auto and manual from v2cig and LOVE the manual (with button)..so easy to use, although they do eat up the carts faster.
-GS shipping is way fast, while V2cigs is on the slow side, but it was worth the wait.
So, to my fellow newbies, I'd recommend getting a kr808d1 and pass on the e9 style.
Good luck and happy vaping!