Just picked up a Snowwolf XFeng (made by Sigelei) and I must say, this mod is aesthetically very nice with a nice hand feel. As far as the vaping is concerned, the power delivery on this thing is great. I'm coming from a Smok Majesty where the power delivery was *slightly* sporadic. This thing applies a constant voltage with no spikes or dips in power (using the same batteries that were in the Majesty). I have only used the wattage mode on both of these units and am still relatively new to vaping. So I just figured I'd throw it out there. 