I recently installed Ubuntu Touch on my OnePlus One. My biggest issue: many/most apps crash when I try to launch them, including the included web browser. As well as many apps I've installed from the store (IMDB Gmail, Buzzfeed, Facebook).
The second issue is the lockscreen. Once the screen is turned off, I can't turn it back on easily. When I press the power button, nothing. when I press a second time right after, the lock/welcome screen only briefly flashes, and returns to black. I can get around that, if I rapidly hit the power button.
I installed it using the Magic Device Tool script.
Thanks in advance!