I have been looking at Robot for several years now. I tried the demo in 2011 and 2012. I am a long-time user of Autodesk products (Civil 3D, Architecture, ADR) and I am attracted by Robot because it is an Autodesk product now.
Each time I look at Robot I get the impression that not much is happening in development and that Robot is neglected by Autodesk. There are no updated manuals or tutorials or support or training seminars and the GUI has no relation to other Autodesk products and does not have the quality feel of Architecture.
Autodesk has a huge opportunity to take the lead among the likes of RISA, Ram, S-Frame, and SAP2000 with a comprehensive user friendly structural design/analysis package that integrates seamlessly with Revit and Autocad. For my part I am looking for some leadership and innovation and committment from Autodesk to this venture.