The Mac mini arrived in good condition, exactly as described. There is a dent on the front and another on the back upper part of the aluminum body, along with noticeable scratches near the HDMI port and a few marks on the plastic base underneath. That said, there are no major scratches on the top or sides, and the overall appearance is better than I expected for this condition grade.
Most importantly, performance is excellent. The computer works flawlessly, feels very snappy, and runs perfectly for my needs. Overall, I am very happy with the purchase.