Ubuntu 15.10 works really well, except for the Bluetooth. Wacom pressure sensitivity is working too (tested in Gimp). With normal use (programming and browsing), I’m getting at least 5:30 hours of battery @ 40% brightness. Might give a little more, since there was some battery left at shutdown.
For WiFi, use the same link Keven Lefebvre posted above: http://ubuntuforums.org/showthread.php?t=2265190
If anyone gets BT to work, let us know.