Just thinking of switching back to either Ubuntu 12.10 or Linux Mint from my Ubuntu GNOME Remix edition PC, mainly because I like the user interface a bit better... It's more pleasing to the eye and a bit more customizable even with Unity, just I really can't do that unless I have a viable LightDM alternative (LightDM has graphical problems with my AMD chipset). I really do love the new GDM available in the new Gnome, but I'd love that in regular Ubuntu.

Has anyone tested out the new GDM in Ubuntu, and if so does it work fine or revert back to the classic windowed mode?