We have been working and enjoying Ecotect from version 5.2 onwards (over 4 years now!) and always thought of it as a brilliant platform for analysis and visualization.
After having been approached by an Autodesk marketing guy the other day, questioning me about my use of Ecotect and if I had tried the new Ecotect Analysis 2011, I have decided to download it and check what has changed since Ecotect's acquisition by Autodesk 2 years ago.
