Today the beta 1 technical refresh got released internally and it looks great :-)

First impressions

• New look is nicely polished.  This really does look the business now.
• Its fast.  The live previews are stunning.
• Galleries are more extensive and rich
• More robust and stable generally
• Outlook seems faster, more stable and search is well nippy
• Excel and Word – both look cooler and the UI glitches are fixed.  Galleries looking good, live preview much better. 
• Better Ribbon - the chunks are arranged better, tabs are cleaner
• PowerPoint – wow!  This has seriously had a face lift.  Very stable and fast.
• Groove – reinstalled, everything just works without any recreation of workspaces. J

So far I’m liking this a lot.

Here is a small taster for you: