So I started using UMR more and more with time. And I couldn't help but a notice a couple of recurrent bugs that keep getting on my way :
1/ Not really a bug, but there it is. Upon launching the app, the screen's luminosity and warmth is set to their lowest settings ignoring any prelaunch settings. Making it impossible to see anything in bed without any sources of light. And there is no way to tweak the screen's settings without first loading a manga wich makes it extra hard in any pitch black environment.
2/ Most of the time the luminosity and warmth sliders do not work without a sleep -> power up cycle.
3/ Half of the time when I put my tablet to sleep it does not wake up and I have to hard reset it.
4/ The "connection to wifi" upon waking up can sometimes takes way longer than usual (but that one might be because I'm living in a flat with a ton of wifi interferences)
So in the end, before using UMR I often have to line up all the odds or reset my device (libra h2o) once or twice.
footage of my average experience (showing off last chapter of Shingeki no kyojin, so yeah .... potential spoilers ahead)
https://www.youtube.com/watch?v=uvW3hw9iuDg