After trying to use IE10 on Win8 for any extended period of time, I would probably like to downgrade as well - the sole reason being the lack of Cleartype (or the awful implementation).  Man do some fonts just look atrocious in IE10 on Win8.

Aside for that, I have no complaints - it's extremely fast and I generally have no problems with the  interface.  But man, that font rendering is a huge stumbling block.