Needs 2 people to attach back/arms, but the rest is a one person endeavor .... The center wooden piece under the seat should have "finished" feet (legs))  and it and they move when the bed is moved so I put screws in it as well as the slats ends as indicated.  That solved that problem.  As for comfort, that is an individual item depending upon the mattress one purchases to go with it.  The fabric is very nice and soft and color is quite nice.