This was super easy to put together, it took about an hour. It is huge, but fits well in the livingroom. It came perfect, both damage to any parts. I did get a 10" memory foam mattress and it works great ( not a twin XL). I am not using the trundle for another mattress, but I bought the under the bed plastic totes and I use it to store blankets etc. Just slide it out and there's my storage. This daybed is comfortable to sleep on and sit with the very large dog and watch tv.