Easy to assemble and clear direction to follow.  It took my husband and I about 3-4 hours to put it together.   The wheels on the trundle bed are smooth and easy to glide.  The frame is pretty solid.  The slats, however, feel a bit flimsy.  I told my 8yr old not to jump onto the bed.  We’ll see how the bed holds up after a few nights.   Overall we are happy with the purchase, and my daughter likes the bed.