Agreed. the battery area isn't as clean as the ipv2 imo.
I like the preset option to quickly switch rda/rba and settings. I have mine set at 17w (4.1v when i use 1ohm), 25w, 50w, 100w, and 150w for quick swaps.
Buttons are much better imo. Outside of the box and edging is a big improvement...