So was well impressed when I got it. The pcc is very nice. Its sitting in the charger still, so havent tested its use yet. Gonna do that today. Cartos: Abit longer than Kanger's and filler goes almost to the top, so they hold more juice. Came prefilled. Good TH from the one I blew out and filled with own juice. (can't vape over 5 mg, get to dissy) But takes a while to get some vapor. I'm on 100% PG though. Downside on them is the caps are very hard to get off. Old style hard caps. Have popped a soft cap on it. Gonna use the drip tip, if I ever give my 510 a little exersize at some point.. Feel driptips on a carto is a bit silly. Don't have a problem with burning taste. Batts: A bit airy at first but have gotten use to it within the evening. BUT...... And here comes the deal breaker.. They activate on their own. Blow on it, shake it, tap it, the LED goes on... My Kanger auto never does that, and haven't heard of anyone with a self activating Kanger.. So, deffo not gonna be getting anymore smoore batts... Think its a good thing you're going away from them, allbeit it is for a different reason. (carto compatibility) The single batts on your site, they are Kanger, yes?