We bought this for our 5 year old to sit in on our new porch. He’s autistic and loves the pendulum like motion of things, it calms him! Bottom line, It’s awesome and he loves it! Super easy to put together, all of my bolts fit and instructions, while only in pictures, were clear.  (And I am NOT mechanically inclined at all.) It took me about 30 minutes, even with a 5 year old helping! Don’t pay extra for the assembly, in my opinion! We’ll see how it holds up!