It works, but the holes aren't straight
How can you screw up a bent piece of steel with holes drilled in it?--By not squaring your jig. All of the screw holes are set so jacks will fit at about a 20 degree angle. While this doesn't effect the functionality much, it looks totally cockeyed.
The only truly positive thing I have to say about the panel is that it is cheap and available. I will probably swap it out for something better when I upgrade my rack in the not too distant future, but I needed something right now and this was in stock.