Yeah the UI is very nice. The screen is so perfect it really makes me wonder why on earth the lavatube and it's variations have the screens that they have. It's been funny to screw on my different cartos and see "oh, that ones actually 2.2ohms and this one is 1.9. THAT's why i've liked it better at 4volts instead of 3.7"
All in all i'm very satisfied with the purchase, and it really does perform well. I'm a throat hit kinda guy and this device has yet to leave me wanting. I def. recommend picking one up!