Yea, I can also report that a fresh LiveCD TC2 installation works very well for me. Some minor glitches (see "Update Failed Today..?" thread) but that was a very very small problem and it's fixed now. Apart from that, I had just one gnome-shell hard lock up after a Houdini style mouse gesture and I wasn't able to reproduce that.
Feels stable and polished enough too.
There are some other small glitches, like gnome-shell extensions that seem rebuilt for f16 but don't work because their gnome-shell version wasn't properly updated. Very minor issues, though. If they aren't already there, I'll file bugs when I get some spare time.