Besides Debian Jesse I have Fedora 21 installed as my stable system. Fedora 21 has worked perfect for me since the RC and upgraded to the final release just fine. I like how Fedora 21 came with one app per task, that is how I like things. I was able to remove the couple of apps I was never going to need or use without other things getting destroyed in the process! I used Easy Life to install multimedia codecs. Totem and Rhythmbox were slightly crippled by default, I guess because of legal reasons in the US.
Installing VLC took care of the multimedia issues. My music is all in ogg format so Rhythmbox still gets the job done. If I really need to play an mp3 VLC handles it just fine. I was impressed with the font rendering in Fedora these days, fonts look crisp and clear! There have been a lot of updates since the final release and I have not had a single problem with any of them! People on the Fedora Forum seem real nice and helpful. I found the answers to all my questions on the forum with no problem.
How do you like Fedora 21?