Yesterday i had to flash Android to my M10, because i need to use Android app. While it was somewhat laggy and incredible powerdrain under Ubuntu, it is nothing of a sort under Android.
When it was Ubuntu. 2A charger couldn't charge battery fast enough and battery drained like motherfucker, but now that it is Android there is no problem with that. If you forgot it on, battery dropped under 50% in just few hrs. Today it was on with Android and after 5hrs (standby) battery claimed it was still 100%.
Very sad that Ubuntu Touch was such a drag to run. I sure hope UBports can do better.