My Take
This is a very interesting tool that if used properly and with not put too much emphasis on it, it can be very useful. I believe that you should not put too much emphasis on this because team mates actions effect the whole team and that can make big competitive problems. If used in a fun way this could really help manage your classroom.
How I Use It
This tool is meant to be used as a classroom management tool. It is meant to appeal to the students because of the gaming aspect while still getting the classroom rules and expectation message across. It gets confusing when you go on to make lessons and quests and how that aspect works into your classroom. However, purpose of teams and accountability in your actions, may backfire by creating unhealthy competition and resentment across your classroom.