The product is great. Exactly what I was looking for. The instructions were clear and easy to follow. I assembled it outdoors on a very cold, windy day and I bought corner brackets to attach the shelves to the sides. The unit was racking because of the wind and this helped stabilize it. Before putting in each bracket, I made sure the doors aligned properly. The pieces fit together perfectly. I did Step 4 at the very end as I wanted to be sure the doors closed well before putting in those screws. I have the greenhouse outside, adjacent to a fence. So, I screwed an 18 inch long piece of plywood, 2 inches wide on each side, protruding out by 2 inches, made a small hole, passed a wire through it and attached it to the fence. This minimized the possibility of it being affected by wind. It looks great, keeps heat in well and is fully populated with plants. Thanks for a wonderful experience.