Received the invitation to "upgrade" to Windows 8.1 yesterday. Painfully slow process, what with all the verifying, tidying, evaluating, cleaning, applying, finalizing, tidying a few more things... ugh. Probably could have accomplished the same things in less time in other ways as I already use Classic Shell.
Just don't like Ain't. I have no need for the Metro/Live tiles silliness (to me) on a laptop/desktop. Of course I probably would still be OK with Windows 2000. :-P
Had my first look at it yesterday when I had to install some fonts on my boss's new dell desktop. Weird shit. In font previews they looked ok. Word 2013 displayed the fonts in the menu correctly, and it printed the fonts correctly, but in actual document display reverted to generic sans with weird kernings. These are fonts that work with no issues on Win7/Word 2013. After several tries I worked out that 8.1 doesn't support postscript fonts, only TT. Way to go, Microsoft!
You'll probably find that it supports OT too. I have a funny feeling that, with the advent and acceptance of OT, PS may be going the way of the dodo.
OT is just a wrapper format. Office 2013 doesn't support OTF ps (at least not my fonts), only OTF tt. Based on my limited research, it seems font support depends on the type of printer you have hooked up, in this case a PCL6. As I said, it printed the ps fonts flawlessly, but Word couldn't display them properly. But I goofed when I said Win7/Word2013, it was Win7/Word 2010 they do work in. So it may actually be an Office 2013 font rendering bug, as some research I did appears to indicate.
Wrappers do my fucking head in.