My husband put 4 together in about 90 minutes. He had no issues, and everything lined up well. So far, they are sturdy (we removed the plastic piece on the bottom and added felt pads), comfortable, and I love that they can be tucked under the island (rectangular shape allows flexibility if you have less space). The only con we found was the difficulty in getting the plastic off cleanly (it was installed under the felt), so be careful not to pull too hard or it will pull the staples out. It is nice to have the fabric protected, however, which is why we gave it 5 stars.