This is a great bed - strong, sturdy, real wood, quick to put together.  I bought the twin xl size with the trundle to go underneath.  I also purchased the 18” legs direct from the manufacturer’s website in order to fit a 10” mattress I already have.  Otherwise there is clearance underneath for only about an 8” mattress with no thick bedding.  The directions are very easy to follow and assembly was very easy.  I don’t have a lot of room in my small apartment.  So I assembled the trundle in the space for the bed, and then I assembled the platform bed over the top.  Super simple and quick.  I would say an hour at most for both pieces, but I was distracted a few times by hungry kids and laundry, etc.  In any case, this was super simple, and I am not a strong, handy person.