Words cannot describe how-user unfriendly their programs are.It's doesn't feel like you're using a program, it feels like you're programming the program to be able to use it. Plus its very expensive for what it is.If you tried the alternatives (archicad, vectorworks,...) you know what I mean.edit:About revit:Yesterday I had to make a printscreen of a section, copy it to paint and save as jpeg, then load it into sketchup, and finally I could measure an angle. I had to do this because revit constantly froze, it was only using 25% of cpu. Turns out Revit can only use one core! How long do we have multi-core cpu's now? more then 10 years? Amateurs!