Hello, figure'd I'd chime in here with my T3 experience so far. First one I received worked okay, aside from some gurgling whenever I held the device vertical for an extended period of time. Refilling that one would result in a large amount of juice coming out the mouthpiece. Kinda weird, considering I was using 100% vg juice...maybe the coils just gunked up and it wasn't burning hot enough. I never figured out WHY that was happening, however, because I made the mistake of filling it up with a cinnamon juice and cracking the tank...so for everyone out there who, like me, was unaware...
THE PLASTIC USED TO MAKE THESE TANKS WILL CRACK WHEN USED WITH SOME JUICES. SEARCH THE FORUMS FOR MORE INFO ON THIS. IF YOURS CRACKS, STOP USING IT IMMEDIATELY.
Anywho, my second one came in a few days ago, and it's been working perfectly. It will gurgle a little if I really chain vape, but no floods when I refill. Tastes great, easy to refill and clean (compared to the ce3). Trying to work out a way to keep the coils clean, so far I've just been running everything under hot water then sucking out the water from the wicks with a paper towel. Seems to work fine, especially when changing juices.