I have a Cassandra greenhouse from Vitavia for a couple of years now. I live on the coast in Scotland so the greenhouse has withstood some very extreme storms over winter. It survived storm Éowyn this year with minor issues that needed repaired and during that process I needed a simple spare part. I reached out to Vitavia who very kindly arranged for the replacement part to be sent out free without a second thought. They make great greenhouses and their customer service is fantastic I can't rate them highly enough.