I had a chance to play around with this quite a lot and I LOVE it. It fits the description "just works" as a desktop sharing app. It's very easy to get up and running which is important if you are working with a remote friend who doesn't know how to configure and setup challenging network and firewall rules, etc. It's also very easy for them to share with you and still see your cursor which is a neat experience when you want to show someone how to do something on a remote machine.
Link to Microsoft SharedView Beta