I am thrilled with my new greenhouse. It recently was assembled and it is first class. Top materials plus the instructions were very easy to understand. I did have a professional working alone for 2 days to complete it. I can't say much more right now because I haven't put any plants inside it. I will in a few weeks post some photos. If anyone in the Philadelphia/ South Jersey area is thinking of buying a greenhouse Backyard Discoveries is the place and I have the perfect installer.