Ubuntu 11.10 (Oneiric) issue with Ubuntu Software Center

After being exited that Ubuntu new version(11.10) has launched got disappointed after first boot immediately.

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.