I bought this with a few expectations and it has exceeded all of them. This is my second hobby greenhouse and the construction of this manufacturer, relative ease of assembly, and overall structure far surpass that first one. I expect many years of use.  Assembly was fairly easy and straight forward due to the well illustrated and easy to understand illustrations. I was able to get it done in about six hours with very minimal help.This unit is structurally sound when anchored and has held up very well in winds around 20 mph (sustained) for a few days in a row.My seedlings are doing well and I'm looking forward to an extended growing season.If I have the opportunity (and space) for a larger unit, I will buy a product from this manufacturer again, and buy it from Wayfair due to the positive experience.Pros: Well engineered. Easy to follow illustrated instructions. Structurally sound. Great value.Cons: None come to mind