If you like other elements of Ubuntu, but you don't like the user interface (desktop environment or login screen) or if you want to try a different UI, you don't need to change to another distro! You could install a new desktop environment or configure the new login screen. Also, you can get back to Unity if you like it better, every time you log in you will be able to choose between the installed desktop environments. Steps: Step 1 . First, you need to install the desktop environment: For Gnome Shell(gnome3 ): sudo apt-get install gnome-shell sudo apt-get install gnome-tweak-tool Clasic Gnome (gnome2): sudo apt-get install gnome-panel KDE: sudo apt-get install kde-standard or sudo apt-get install kubuntu-desktop (Taken from: http://kde.org/announcements/announce_4.2-beta1/desktop.png) Light and fast XFCE: sudo apt-get install xfce4 (Taken from: https://es.wikipedia.org/wiki/Xfce ) A fork of Gnome 2 (MATE): sudo add-apt-r...