I just downloaded Chrome 64 bit. It's a bit strange, the fonts look funny, the interface elements are a little bigger and don't look as good. Going back to 32 bit I think.
Edit - I just reverted to 32 bit and it looks the same. Fonts aren't as crisp, the tabs up the top are a bit bigger, everything just looks a bit funny. Anyone else noticed anything? May have to revert to Firefox.