As far as assembly goes, the spiral slide is the most difficult. The labeling of the bags for the screws, nuts, and bolts, etc. could have been a little better. Overall, this is a great set for a backyard. I mean what kid doesn’t want a spiral slide in their backyard A bonus is the smell of cedar that lingers in the yard for a few days. We are very happy with it and our five year old twin boys were over the moon excited! They’ve acquired many little neighborhood friends because of it. All in all it’s a great set for the price!