The tools address the 2 most significant weaknesses encountered when using Vasari:
- Predesign tools/climate analysis - By which I mean the ability to explore the information contained in a weather file in a meaningful way to explore design possibilities that are appropriate for a given climate.
- Daylighting simulation - Integration of a simulation engine for daylighting/glare analysis.
Number 1 has been on my wishlist for a while and despite feedback to the development team [1, 2] I have seen no improvements. Number 2, is showing a tiny bit of promise with recent Autodesk Labs developments.
So with Ecotect being effecctively retired by the release of 2015 products (Autodesk supports up to 3 releases back), the time is ripe for some new development! While I still love the Revit platform, some basic tools designers need for building performance just aren't there and have driven me to explore the world of Rhino3D/Grasshopper. I encourage you to check out Ladybug and Honeybee, providing new integrated workflows to design better buildings.