Thanks, yeah the 510 is awesome, the hit and vapor production is great, taste is awesome at times and other times it can be weak, just depends on battery strength and freshness of cart. Although it can be a little more hassle, it's very worth it as I've tried other brands of ecigs and they are just not strong enough, very weak actually. I've met people who have bought other models and been very dissatisfied and give up on the e-cig. Many people complain about the burning of the cartomizers with the KR808D type models, and the reviews as far as the strength of throat kick and vapor compared to the 510 seem mixed and less satisfactory. Mods seem to have the best reviews as far as reliability and hassle free e-smoking giving the best taste and production. A step above the 510 is obviously a mod, so that's my next step. Mods also allow you to use regular batteries rather than send away for expensive replacements. 510 atomizers are real cheap now, 8.00 ea and last a long time. It's not messy if you know what your doing, easy to drip, really not a big issue and trust the hit totally makes up for any additional fuss. !!! 510 rules !