Does anyone have a good or bad experience using a PC server rack for audio equipment?

I have a 2 rail PC server rack with 7 steel shelves that was used for all my PC equipment that I am no longer using.  Each shelf is attached with 8 machine screws and are 17 1/2" W X 19" D, providing a very stable rack.  My equipment will all fit, barely. I was thinking of putting 1/4" MDF board on the steel shelf for some (if little) vibration absorption.  Has anybody tried something similar?   By today's standards I have a very low end lo-fi system consisting of vintage 1976 Marantz equipment, speakers are Revel Performa F208 floor-standing loudspeakers.  Streaming is done via BlueSound Node.