I've owned many shoulder rests, including the KUN original and super - which I also like. There are several things I like about the KUN collapsible shoulder rest: (1) It collapses! So it easily fits in your case. (2) It's comfortable. It's adjustable high-wise AND angle-wise, which fits me much better than the Everest Shoulder Rest (which works for some of my students - but the angle isn't adjustable on it, so it doesn't fit me. Like-wise the cool new KUN Solo rest, which is super light, but doesn't adjust angle-wise, so I gave it away to someone who loves it.) (3) It's affordable. Sure, it's more expensive than some, but it's well made. And (4) it's made in Canada, and I like to support our friendly neighbors to the north.