[Is it stable? ...]

Running 57f84c920b17 (2012-10-27 +0200). I know it hasn't had much run time, but ran through most of its capabilities and haven't had a single issue.

[Compile or cmake problems]

Lack of logs and information for the fail.

["unknown column" "missing table" "duplicate column" error / sql problems / SQLDriverLogFile < answer on 1st post of 1st page]

Because many people find compiling scary for some reason.

[Is it stable? ...]

That would be the internet provider's or host's fault no?