Sturdy and surprisingly easy to build - the parts and steps are very clearly labelled. I usually hate DIY and kept putting off building this bed as the box it came in was so heavy, but in the end it only took me an hour to put the bed together! 

Slats are connected together via a velcro strip which keeps the slats in place over the frame without nailing the slats in, which is a neat way of speeding up the building process.