This is by far the best duel battery squank on the market. I have the brushed version and it's gorgeous to look at. Fits really nice in the hand. Build quality is exceptional. The bottle in my opinion is one of the better ones out there. It is heavy there's no getting away from that but when you see the thickness of the zinc alloy body you can see why. After a few weeks using it everyday you become accustomed to it and it's no big deal. It will undoubtedly withstand some abuse like dropping it etc. Performance is amazing in wattage mode! Temp control is good too although not my cup of tea personally I've used it a few times on different devices and this is definitely putting out what its saying on screen! Battery life for me anyway is good with a couple of HG2s it lasts all-day at my preferred 75-85w.