The greenhouse arrived by UPS in two boxes.  We live in a coastal environment, so we had to wait for the wind to die down each day before we began "our build".  The instructions were easy to follow with good photographs and simple directions.  My wife and I completed our kit in about three days (due to waiting for the wind to die down).  All parts were well engineered and fit nicely.  We are very pleased with our purchase.

Pros: Simple assembly. Solid product once assembled.