Whidbey Beta1 likes/dislikes?

So I'm back blogging, and its been about 2 months since we released Whidbey Beta1. I got to thinking - how have you figured out what new features we have in the product? Do you feel like there is good documentation - either in the docs or online about what the new features are? In the alpha we solved this with a whats new document at: https://msdn.microsoft.com/vcsharp/default.aspx?pull=/library/en-us/dnvs05/html/whidbey_csharp_preview.asp

We are working on getting a similar document out for Beta1. However I'm curious if this is a pressing need at all for you our customers?