I pushed it to 75 watts for the hell of it with a 2mm fused flat ribbon clapton at .3 and it held up fine. But it was sucking juice at a crazy pace, way more than my Crius so I just threw on their twisted wire to see how that would compare and not much difference, the thing is a guzzler. I don't open my juice control all the way either, actually just a tiny twist on mostly 60/40 VG/PG and some 70/30. I had one or two leaks, but like most people here, when I took the base apart the wick was messed up so it got caught.
The trick for me is to wet it, then put a little wick down the juice channel and have a little rest on the side part. Kind of like a hybrid between Mike Vapes and Suck my mod's wicking techniques, then screw it on knowing that it won't catch. Also before I wet it I blow on the tails to make it look like a pancake wick then work using that instead of working with the ends hard as a rock if you cut it and leave it like that or do a hack job like some people do and try to fluff it out with a flathead or something crazy which drives me insane, you can't do it better than just blowing on it as it will fluff up like a magical pillow.
It's a great tank and comparable to the Crius which I'm a fan of too but I wouldn't get another one as I have my eye on maybe the Goblin Mini V2 or the El Diablo RTA which looks like the ultimate RTA but it also has an ultimate price too at $85 for the 5ML and $75 I think for the 2.5ML:
Diablo Tank by El Diablo (5ml) Pre-Sale)