My main devices are twists, which I find boring but they just work so well and are very practical for everyday use. I fell for the hype and bought a zmax v2 which works good but is just too big and gaudy looking for my tastes. Went the other direction and bought an eroll because I spend a fair bit of time in Las Vegas and sometimes fell out of place in bars and casinos with my larger twists. The eroll does work quite nicely. The down points to me are the air hole is located right where I want to hold the device, the atomizer gets too hot to hold it there, so I end up holding it closer to the LED end, not ideal. Its nearly impossible to see juice level in the cartridges, the case doesnt hold anything other than the one assembled eroll, one of the two included atomizers was doa, and I have to take a longer draw to get the same hit as a more powerful device. Overall though, I quite like it, much smaller and lighter than most 808 models.