The  reasons  for 4 stars instead of 5:
The cousins fall over because they designed To stand straight up. A slight breeze blows them over. 
2. The frame is aluminum and the bolts and washers are Steel. For those who don't understand the importance of that; when you mix two types on mental ( especially in the weather) it causes rust. So if you want it to last buy alumnium washers and bolts and don't use the ones supplied.