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The hole pattern is visually attractive, but I'd be concerned about airflow and noise: the holes themselves are fairly small and not very closely spaced. Not only does this reduce total intake area and increase intake restriction, but fans placed close to the side panels will be louder than with a less restrictive pattern. That may not mesh with the Braun-inspired aesthetic, which heavily used bold and sparse vent holes as a design element rather than closely spaced ones. The only exceptions were in speaker grilles for some HiFi equipment (e.g.), but using a separate mesh&frame would complicate assembly.