I got my first carto tank yesterday, an AGR+. I've been using clearos, Protank 3, Aspire BDCs and the new Nautilis but this tank is the most consistent performer of all of them. I've always been a fan of cartomizers and the tank only adds to the experience, great flavor and plenty of vaper all the time. I have a Phiniac tank on the way so looking forward to that. I don't know what I'm going to do with all my clearos now.