I'm a total fan of K&M products, and my accessories are all K&M, including my Omega Stand which this box was designed for. It is a great quality product, but misses a bit on functionality. Unless you use it in a studio, which seems perfect, don't try it for live gigs. It is not big enough for all power units, depending on the brand of keyboard you use, especially if you need to put more than one power unit in multiple extension cables (for instance keyboard, any processor, tablet etc).
As the box is turned to the audience, it really doesn't look amazing. I ended returning to my original way, using Omega plastic clips for the cables, with all cables ending in an organizer box (the ones to organize cables for computers, or TV , for all plugs and power supplies etc), which looks perfectly tidy. I run the necessary cables inside a single sleeve ( professional Broadcast Studio snake style) coming from the gear together, and fix it with the Omega clips.
I like my cables tidy in live gigs. so you can only see one sleeve running along the Omega leg to the box.
Also you need to screw and set this omega tray/box every time you do a gig, which it adds extra minutes on your setting time. In summary, ok for the studio, not amazing for a live gig.