I concur with Pro. My VOTE also goes to the Quiklok Monolith Stand, though it doesn't support a mic boom or music rack add on. The Monolith is the only portable (collapsible folding) stand that I would say is truly 'rock steady' preventing your Keyoboard from bouncing, like the X stands and Apex stands tend to do. Another reason I don't like the Apex stand is because the center column juts up high ABOVE the keyboard and can block your face (from the audience).

For super quickie gigs, I'll probably take the Quiklok X Stand, but for 'anything' more, the Monolith stand offers rock solid KB stability, and it looks so MUCH more slick & professional as well, and offers a LOT more leg room for pedals, and saves your knees as well, because there are no obstructing cross X beams to contend with. The great thing about the Monolith is that it folds completely FLAT. - Scott