Great bed and not too difficult to assemble...did on my own.  Pretty sturdy for a metal bed, not too much movement or squeak.  Follow directions!  Don't tighten everything until you're done, and if a screw is hard to get in just jiggle the unit around.  The trundle does have wheels...I took a chance as they're hard to see on the website but they're there and they work great.  I love it!