Would this be a good option to goto? It seems extremely cheap and simple.
I like the kanger T3 better. For one, because you have to unscrew the mouthpiece on the T2 to refill and the design is that the metal threads are only glued onto the plastic mouthpiece and it can come apart - rather easily. There were so many cases that Kanger offered free mouthpieces to anyone who bought them.
Secondly, the T2 coil and wick are at the top, and while this causes a warmer hit, it can also be a source of dry hits.. sometimes you have to wave it around a bit

The T3 is a bottom coil and wick, which can produce a cooler vape but no dry hits. I also like the silicone seals better on the T3. The second seal inside the T2 is harder to replace if it gets out of place. There is a seal above the threads on both that you must make sure it stays in place. Also you have to check the coil unit on the T2 as it sometimes comes unscrewed on refill. Since the coil is part of what you unscrew on the T3, that isn't a problem. That said, I still liked the T2 over the CE's and stardusts for eGo's and I'm guessing there will be more sales on the T2's since the T3's are begining to dominate because of the above reasons.