Ubuntu 13.04 "Raring Ringtail" GNOME Review: Upgradable to GNOME 3.8 and performs reasonably well!

Ubuntu GNOME (formerly Ubuntu GNOME Remix) is right now an official flavor of Ubuntu and their first official release came with Ubuntu 13.04 "Raring Ringtail". The unique USP about it is pure GNOME experience, devoid of Unity. Given it is the first official release with vanilla GNOME desktop and upgradable to GNOME 3.8, I was naturally inclined to try it out - to see whether it is more