I have to say, GNOME 3.6 is proving to be very frustrating to me.
GDM 3.6 seems to have trouble taking the hand-off from Plymouth w/ sysvinit, so I don't get a graphical login after the system finishes booting, and more often than not I can't drop to a console either to log in that way (or restart GDM so it actually loads). If I replace sysvinit with systemd (the service manager GNOME seems to prefer), Plymouth seems to hand off fine to GDM, however my Intel graphics driver doesn't seem to be properly loaded and instead I'm stuck with Gallium through LLVM and no 3D acceleration, so no GNOME Shell or Cinnamon.
GNOME Shell 3.6 I like. The new way of handling the message tray (nudging the whole desktop up out of the way) is rather nice, and, though it seems to be necessary to have the summary mode height set to 60px or higher, it's not really that bad since the desktop is nudged up out of the way of the message tray.
GTK 3.6, or more specifically, the Unico engine update that works with it, is extremely disappointing. Most of the stuff Unico used to be able to handle in CSS has been removed (inner and outer strokes, which made for styling buttons and such rather nicely in CSS, also check and radio button styling, probably other little things...) has been removed, causing many themes that rely on Unico for fully CSS-based styling to break rather badly. It would seem that image assets are going to be difficult to avoid with GTK 3.6. As such, I'm currently suspending further work on my themes until such time as a new engine comes along that allows for fully CSS-based styling such as Unico used to allow, or the Unico developers return much of the styling support they removed back into the Unico engine.
I like the new Nautilus. (The only issue I have with it is that my themes don't work well with it, and I can't figure out what's been changed to be able to fix it. This is outside of the Unico-related issues, which affect the whole theme. Since I'm currently not planning to update my themes to GTK 3.6, this is somewhat unnecessary, but it would be nice to know what to fix in case it becomes practical to update my themes at some point...)
All in all, I'm really having mixed feelings about this update.
I suppose I could remove Plymouth, since it doesn't really provide anything necessary for the operation of my system, and doing so would fix the issue with GDM not starting properly... I could also find a new GTK3 theme to use that works with the new Nautilus and GTK 3.6, though finding a theme I like is sometimes pretty difficult. That's ultimately why I made my own themes (based on one I found and liked, but wasn't *completely* satisfied with...), and eventually managed to make a passable update for the Shiki-Colors themes (based on what I learned from making the other themes, and borrowing most of the code from them and tweaking it wherever necessary)...
For now, I'm working from a backup I made pre-GNOME 3.6 updates, and I'm going to hold off updating for the time being. Once I've made up my mind what the best possible course of action is going to be, and possibly accepted that I may need to make a couple sacrifices in the overall look and feel of the system in favour of just having things work properly, I'll proceed with the updates...
Linux Mint user since 2010, fluffy dragon forever!
Registered Linux User #473695