In case you missed this outstanding blog post on the new Visual Studio 2013 XAML Tools, here it is: xaml-editor-improvements-in-visual-studio-2013.aspx
If you have questions or comments leave them at the bottom of that blog post.
Harikrishna Menon the XAML Tools Program Manager will respond and is keen to receive feedback from the community.
Have a great day,
Just a grain of sand on the worlds beaches.