Purchased in autumn 2014, it has kept strong wind (terrace on the sixth floor very exposed) in the docking seriously however. My parents are happy, they are even worried that it may be too hot inside. He still had to add two wooden brackets on the crossbars (braces) from the ceiling, otherwise the cover forms a bowl, too much water could accumulate and destroy the structure (see photos).
Important: this model has eyelets at the base, very convenient to moor the greenhouse. Apparently this option is not present on all models, more or less identical, available at Amazon.