No matter what you're designing, you're going to want to be able to quickly and easily pick it up, look around it, delve into the details, and pull back to get the big picture.
Despite vast improvements over the past, the application has never come close to that ideal.
- when zoomed in, pan scaling is unreasonable (it takes an absurd amount of panning to move one screen width)
- it is easy to accidentally go through walls / break the viewport
- there still seems to be an issue with gimbal lock (if you orbit for awhile, at some point orbiting further gets out of whack and unusable without returning to a predefined view)
