Sturdy metal, rollers that make it easy to move, very quick and easy set up by one person (I'm female), and looks just like photo.  They provide two extension bars should you want to increase size all the way from twin to king.  I set mine up for queen size.  The metal bars were not secured by anything inside the box for shipping purposes, so one of the "lips" was bent down, preventing the swing bar from locking into place.  I had to use another tool to lift and push it up so the bar could lock in place.  Other than that, no issues with set up, and it's a great product at a great price.

Pros: Sturdy material, great price, adjusts from twin to king