I bought two of these to sit on my desk either side of my mixer. I initially thought these might be a bit pricey for what they are when looking at them on the site, but I took the plunge.
First impressions were, nicely made, finished and sturdy, and comes with bolts and plastic washers (nice). I was apprehensive about the rack system itself. I'd personally not seen the system before. I was however pleasantly surprised at how easy it was to fit units into it. The 'receptor nut's have a sort of spring loaded recess which makes finding them with the bolts really easy. I also like the vertical flexibility it gives you to position your gear if you need it to seat non standard units.
Overall, I couldn't be happier with these racks. They look great and are very practical and sturdy. Much better than anything I could make myself, which was something I considered.
Worth every penny.