The Undefined Playground

Designed by BUS Architects, the Undefined playground is a modular, portable, and collapsible playground system that can be dropped into an open/public space, transforming it into a play space.

I really love the considerations towards multi-use, and the considerations towards borrowing equipment. I'm curious to know how hard/heavy it is to maneuver, as well as if there is any more seating that gets pulled out.  That would probably be my biggest critique (which is small, at that!).  Great ideas here.