This is an incredible set! Worth every penny. High quality materials. Easy instructions for assembly. Great spikes to hold it in place. Definitely could be assembled by one person but  need another to lift it into place as it’s quite heavy and large. We tightened bolts after positioning and after a few swings and it did need it. Feels very secure. As an adult I can swing without fear as high as I want! This feels like park quality. It is big! So be prepared. My girls (and me) will be swinging on this for years to come. Delivery was very quick and came in three boxes.