Why use anything else
I'm an architecture student and have experience using other programs such as Revit, Sketchup, and AutoCad. Those programs are good but either aren't accurate enough for me, or they were a little troublesome to use. Rhino beats all of those programs, hands down. It's incredibly accurate and so easy to use. The command input is fast and easy, and being able to have the project in four different views at the same time is irreplaceable and incredibly convenient. I had been using Rhino 4 for almost a year when I made the upgrade to Rhino 5; best decision I could have made yet. Good job Rhino, keep the awesome programs coming because you have a customer for life here!