@Flohack I'm running the RR from faust93 on my Ubuntu pro 5 (for some months since Canoncal droped it)... The RR works almost 100% great... So if the Ubports would be based on that base I would most probably switch back since then hopefully also all bugs that the Pro5 had will be gone... (ex Bluetooth, Headphone volume, no å,ä,ö in messaging, miracast (cromecast) support, etc...).
Just a question if I now could do without the gapps since I started to get used to be able to do my bank tasks on my device now a days...
So with Anbox and libertine container with access to the system (sdcard, gps, camera etc.) and the bugs above solved I would do a switch back all day in a week...
For now only my BQ e 4.5 running the ubports and the M10 is still on Canonical image planning to do the switch as soon there's some news on the 16.04 ...
/Lars