Excellent.  My son has used this for a year now.  We use the trundle bed as storage for him by buying under bed containers.  And now we don't need a dresser in his room.  Has held up well after a year of use.   Was very easy to put together.  We did have an issue with the initial frame that was sent, as it had a HUGE crack in the wood in drawer frame.  Wayfair was superb in service and replace it quickly.