Looking to buy new E-Cig - Looking for suggestions on what to get?!! Riva510? eGo?

[Reanimator]

Just wanted to advise you that the 510 IS NOT compatible with the Smoke Free. The Smoke Free was my first e-cig, bought it at a mall on Aug 20. They are RN4081, and I have purchased batts, PCCs, and cartos from AquaVapor that fit my original Smoke Free batts. They work great. I had a 510 (Blu) and I immediatly noticed it was a different model. The Blus were a bit thinner and shorter.