Thank you for trying out!
The core, kernel, is still considered as development and problems might / will show up. I didn’t catch many of them, but I read people had some unexplained issues with it.
We just started to deal with this board so I am not yet much familiar, but I think temperature sensors are not properly implemented or not implemented at all. Installing some application won’t help, since most likely the data is not in the standard place or not present at all … need to be investigated. Our script check standard locations, like those apps.
I didn’t have luck with my WiFi and this week I’ll proceed also with new kernel (4.12.x) to see how it works …