I used that one shortly..
Bad quallity
Had my upper keyboard drop on the lower while playing it..
My quckk reaction prevented damage to the kronos.. 
Hi Bachus,
Thanks for sharing your experience.
I also read some negative reviews on this keyboard & laptop stand before I ordered it.  The one that I received through Amazon has very reasonably good construction, very solid and stable when all the screws are tighten.  The front legs can swing in and out any time for deeper or wider lower tier keyboard.  Maybe they improved their product quality over time.  I noticed that the second tier supports have 2 thumb screws below, on each side.  If these thumb screws are not well tighten, the upper keyboard could fall.
Currently I use the Griffin 2-Tier KB & laptop stand for V-Console for Genos, so far so good for home studio setup.

One big advantage of this KB & laptop stand is ample leg and foot space.  I put a 13-note Roland PK5 MIDI bass pedal, 2 piano style sustain pedals, and a volume pedal under the stand, and there is still available space.
Thanks,
Paul