WiFi issue for my dell laptop is still there. // Though I have work-around, expecting more.
Option for classic menu was gone, and new look n fill is annoying.
Already installed google-chrome is not working after upgrade.
Fortunately I had backup for all .deb packages, but on double click it opens the Ubuntu Software Center which get hang and I am not able to install any packages. I had to install all downloaded packages via terminal as
sudo dpkg -i your_downloaded_package.deb
I am worried/surprised in OS war Ubuntu have released such unstable version.