I have been using the beta version for a few a month or so for development with BricscadV13 and AutoCAD2011 and I like it.
Edit and continue works sometimes, I think it depends on the scope of your code. If you get an exception the dialog pops up and if you can edit it will give you an option. Very handy when available.
There are some very cool text editor features as well, some similar to using Sublime Text 2 ->
http://blogs.msdn.com/b/visualstudio/archive/2013/07/15/visual-studio-2013-new-editor-features.aspxThere's some new features for the Team Foundation stuff as well if you use it, I think some of the features may be useful in a large team but the overhead/time of just using it for me is not worth it (at this point), I'll just use git or svn for repository purposes.