Just got a Kanger T3 and a few replacement heads. When it works it's great. Love the look on my eGo twist (tanks always look weird and like its going to snap off), easy draw and lots of vapor. A bit of the plastic-y taste others have mentioned but went away quickly. When it's bad it's really bad. Leaking, gurgling, hard to draw through, just unusable. There seems to be a really small window of usability in variation between the replaceable heads. Inside that window, its one of the best vaping experiences I've had, get a bad coil head or anything though and its just a nightmare. There are a lot of YouTube videos and the like about rebuilding or fixing them if you want to go that route, or spend a couple bucks and just throw a new head on there. Seem to be hearing some talk that letting the tank get to less than 1/3 full can lead to some of the issues too... do the MT3's have any of these problems that y'all have seen?