Renders wait in line instead of being refused when the machine is busy. The screen says your exact position and, once there is enough history to average, how long it is likely to take. Nothing is made up before that. You can close the page; the finished video is waiting in My videos.
A queued video can be cancelled, and the minutes reserved for it come straight back.
Scenes are drawn and voiced side by side rather than one after another, and the final assembly copies rather than re-encodes when it can.
Writing a storyboard has a screen of its own and can be stopped, and the price sits on the screen with the button that spends it.
A person or an object that appears more than once looks the same each time, a black-and-white style stays black and white, and sharing takes one step.
Copying a script, downloading a file and starting an edit are on the card in your library, and a video that is waiting or being drawn says so.
Everything that changed, newest first.