I forgive the rack 4 stars. For 5 stars it would be more stable after construction. Driving laden I would not recommend this because it very wobble and shake. Also to protect the forward befindenen equipment I would not do this personally.
The processing of the various parts is acceptable. When attaching the wheels had to rotate them through the wood panel (pre-drilled). Since the white wood coating was not completely recessed in this area, this was a bit tedious because you were, had stuck 'with' the color (coating).
Overall, I can issue a recommendation to buy, unless you need to move the rack several times a day.