Anyone ever tried to use one of these?

http://www.musiciansfriend.com/accessori...nd?src=3GOA2DAQ

If so, is it:

...Sturdy, holding your keyboard without much wobbling?

...Easy to set up and break down?

...Portable?

I'm interested in all those issues, but especially portability.

If it packs into a largish suitcase and leaves some room for clothes and other items, then maybe it would be permit a "two-bag flight" -- keyboard in one hardshell case, and one suitcase for all the clothes, toiletries, etc. that we need to support our traveling pianism...

Any observations welcomed!

Good 10 minute demo video at NAMM 2012:

http://www.youtube.com/watch?v=lJryTTOwcww

For several years I have happily owned a Roland V-Stand, bearing the Roland logo and made for Roland by Ultimate Support. It lacks the locking feature and the polycarbonate parts of the current model (per the YouTube video) but is essentially the same otherwise.

Of the 3 questions asked, I answer an emphatic YES as to (1) stability (rock solid) and (2) ease of setup/teardown (about 15 seconds); but (3) portability is a different matter. The V-Stand is the heaviest keyboard stand I know, and it's a little bit of a strain to carry in the custom bag I bought from Roland for it, so, although I think it's the best stand out there for a heavy keyboard, if yours weighs less than 50 lbs I think it could be overkill. In addition to my 53-lb Roland I have a 24-lb gigging DP for which I shlep a much lighter ironing-board-shaped stand.