I haven't tried them and in truth, though the idea is interesting that's just too rich for my blood. I expect to be ordering a couple of their Cisco 306s soon though... 2 for $20 including 1 drip tip, I believe. I haven't used them before but the reviews I've seen are good, and IkenVape is out of their io6 LR (which is a super little atty IMO). I've got an io6 I've been using over 2 months and it's still cranking out the vapor but I need to keep a few of those around for testing my DIY juices. Anyway good luck with whatever you decide, and happy vaping!