I could honestly speak for hours on the virtues of this shoulder rest. I have had mine for almost 10 years and it honestly feels just as good as the day I bought it. The feet are soft and won't damage the violin, yet the rubber is tacky enough to hold on and not slip like some out there.
Comfort wise, I dare anyone to try to find one any better! I can literally play for hours and not receive the slightest irritation. The foam is soft, yet sturdy. The contoured shape is great because it disperses the pressure evenly instead of just on the inch or so that a straight rest would. It also swivels to create the best fit for your shoulder. It is adjustable in practically every way and it takes some time to locate the "sweet spot" as far as location on the instrument itself, which notch to put the feet at on the body, etc., but once found, this thing will literally be your best friend.
Storage wise, it fits comfortably in my case without needing to be collapsed, and to be quite honest I am not sure how it collapses mainly because I have never had to do so. Anyway, it is a great investment at whatever price point! Believe me, if you play the violin, BUY THIS REST!!!! If you know someone that is starting out and want to give them a gift, BUY THIS REST! It makes the violin SUCH a pleasure to play!