If you’re not happy with the default desktop environment (Unity shell on GNOME3) in Ubuntu 12.10 (Quantal Quetzal), then you can try installing some alternative desktop such as MATE, Cinnamon, KDE etc or a lightweight desktop environment such as XFCE.
Why go for a Lightweight Desktop Environment ?
low resource requirements (it can also run smooth on older computers)
I'm a Web Developer and also Ubuntu user for some time. Ubuntu is my favorite and only one distribution I use. I work with Debian also but Debian is the best for server and Ubuntu for Desktop and laptop. Sad thing for me that I still need to use Windows just only because There is no chance to install Adobe CS5.5 package on Ununtu. I tried with Wine but I wasn't successful.
I've been trying a bunch of desktop environments using Ubuntu 12.04.1 64 bit LTS and I have to say that I strongly prefer Ubuntu Unity desktop environment by far now. I did try Ubuntu 12.10 64 bit, but I found that it was not nearly as stable and I had a lot of problems with the package catalogue being corrupted when I removed software packages that I no longer needed.
I upgraded my Ubuntu server from 12.04 to 13.04 a few months back. Something went wrong in the upgrade, and I haven't been able to use the desktop since. Login works, but desktop never loads properly, there's just an empty screen with a mouse pointer.
Alternate titles: How to install Cinnamon desktop in Ubuntu 12.04 Precise Pangolin; how to install Cinnamon desktop 1.6 in Ubuntu 12.04 LTS.
Cinnamon 1.6, the latest edition of the desktop environment whose development was partly inspired by popular dissatisfaction with Unity and GNOME 3 was released yesterday.
Installing The Sugar Desktop Environment On Ubuntu 9.04
Sugar is the
desktop environment that is used for the "One Laptop per Child" (OLPC)
netbooks. It can also be installed on normal computers. This guide
shows how you can install Sugar on an Ubuntu 9.04 desktop.