The question is going to be reliability in the long term. Carls Jr. uses a burger conveyor to cook burgers (stick the patty in and in a fixed amount of time it comes out perfectly cooked) for example, but they also have many moving parts and if it breaks, that is half the burger capacity gone (they have two per store usually).
With a complex machine like this, keeping it from breaking is the key. If it works well though...this really could change things.