I love my new metal pergola! It was fairly simple to put together. It took quite a few hours to put together, but that was expected due to the sheer size of the project. I purchased 2 and both had the same issues. Both D, D1 and N holes did not line up easily to allow the screws to be inserted. That was definitely very frustrating! Another slightly frustrating feature was pieces stuck together requiring special tools and lots of strength to pry apart. All the parts and screws were labeled very clearly though and assembly instructions were great. I would recommend this to any friend.