I love this equipment carrier! I installed it today and it's perfect. It's durable and well built. I bought two identical racks, this one is better. I like that the shelves are not connected to each other. You can arrange them however you like. Also a great advantage is that both have hooks for hanging items on the lower frame. The Sunix system is made entirely of metal. Another had plastic hooks that temporarily held my heavy folding chair that I use at sporting events. This caused the plastic to crack. I'm sure the metal hooks will stand the test of time. For reference, Sunix is the one on the right.