I'm facing several rendering issue. I'll try to fix them one by one.
On a Windows XP machine with the latest version of Chrome, I have 2 rendering issues :
- the circles, menu items etc... are barely visible (almost totally white)
- the web fonts don't render properly
Same on your demo website...
I tried on my mobile (Android phone with Chrome) and on a Mac with the latest version of Chrome, everything looks great.