Just wanted to add a quick review. I purchased a 510 Riva kit. I have been using a 5v box mod with cartos. Haven't used an atty in quite sometime. However, I was curious and really wanted something smaller. Of course battery life is great. I don't vape as much as I used to so one battery lasts me all day. I am using both the included atty, and a LR 510. I am vaping the peanut butter and red bull flavors. No, it does not vape as hard as my box mod, but I am okay with that. The trade off for a much smaller package with great battery life is awesome. I also tried it with the 510 soft cap cartos and didn't like it. The LR 510 is the way to go. Overall I am very happy with my purchase and would recommend it to anyone! The pictures also feature the drip tips available at EastMall and they look great on this unit. Thanks for a very quality product and a such a great price!