Great overall... 1 very annoying point is sometimes the connection break and the tools stop working... only a page refresh fixes it. It would be so much better if the app could recognise this and prompt the user.
An indispensable tool for conveying a design. I recall the primitive days when we used to share files of flowcharts of this or that office package... this is such an upgrade and so much easier to collaborate. can even see the mouse of my colleagues without having to share the screen.
