Yes, this is what all other ArchiCAD salesmen say, too, but never have been able to substantiate the claim. Oh yes, you guys give heaps of reasons, but they do not, conceptually, amount to much.
Well, I'll skip Revit, we hatess Windowss... But I intend to do that with ArchiCAD - although what I have learned using it in demo mode does not really convince.
It is impressive, no doubt. The user interface is especially impressively confusing and complicated. Maybe it is worth it, though - but it is approximately 15 years since I got so totally frustrated with ArchiCAD that I switched to MiniCAD. (And hey, I was even an ArchiCAD trainer & consultant part time!)