Hello, threes made by and sent packing everything top, the structure after 2 afternoons. All parts marked by good numbers. Unfortunately the enclosed assembly instructions at the beginning is a bit opaque when it comes to the direction of the aluminum profiles, in which they shall be affixed. The frame of the finished greenhouse is quite stable. The plastic sheets are (4 mm) really thin and flexible. The attachment with the supplied brackets is actually simple but even during installation refrain that there is nothing for eternity. Had the greenhouse bought in the summer, last week then set up and after 2 days and the first wind now missing most of plastic washers. The brackets are places still in the aluminum profile and the plastic sheets are simply out broken at these locations. Will the company contact if anything we can do for Warranty. 100 brackets must be installed according to instructions, 116 brackets have been supplied and installed by me. Apparently there were but a few. The door is pretty rickety and was provided to me by a latch (homegrown) to prevent opening by the wind. Even the 3 plastic panes of the door, they are clamped by the door profiles and not held by the clips were ripped out. Addendum: You can contact the seller turned out to be absolutely accommodating, unfortunately, a guarantee could not be given but the damaged plates and brackets were invariably replaced by goodwill by the elapsed time. Many thanks