Easy to assemble once you organize all the parts. Use your own tools if you have them and it will be so much quicker. Seems sturdy enough for an average sized adult. Only disadvantage I see so far is the limitation on the thickness of mattress because I bought it to convert to a king when needed. 6” was the thickest that would fit on the trundle without impeding it rolling under the daybed. Will be just fine for kids to use or short stays for adults.