Excellent and flexible synth stand system. I'm using this to support a DX7, Mininova, JD-Xi, MiniAK and Keystep 37. A bit of a squeeze fitting two mini synths next to each other, but I didn't have space for a wider stand. The holders can be reversed for a bit of extra length whilst sacrificing robustness (and so allowing smaller synths to stick out beyond the edge frame).
Only negative point is that I noticed ALL the screws and handles were slightly loose after half a year. Might have to tighten them up once in a while.