I chose this shelving unit based on price and because it was taller than all the other standard 72" wire units. It comes in a box but there are a lot of pieces and not as easy to put together as the other wire shelving units I've seen. I was skeptical upon seeing it out of the box. However, once it was assembled I was impressed at the size and sturdiness of the unit. We are keeping them and happy with them overall. I will say that the pictures could have been better because I think they were a bit deceiving. The shelves are not that easy to adjust once they are assembled.