Product review (5 stars): I'm officially a convert
I've been using Vandoren reeds with a Selmer reed case for a number of years now.  I heard about some of the pros using Rico reeds and thought, "Really? Rico??  Isn't Rico the default brand that beginners play on before they discover what real reeds are like?" But I tried a few different ones, and I'm now using them instead of Vandoren. I liked the Rico Reserve Classic reeds the best, but I also got some Grand Concert reeds, which come with one of the humidifier packs included in the box. I tried using it with my Selmer reed case in a ziploc bag (I would always keep the case in a ziploc bag, anyway).  At first, I couldn't tell too much of a difference in the reeds, but when I stopped using the humidifier pack, my reeds seemed worse.  I tried another humidifier pack, but it hardened up too quickly.  I think it was because the ziploc bag was used and not completely sealed tight. It was also a little cumbersome to have the humidifier pack loose in the ziploc bag. That made me want to try one of these Rico reed cases which were designed to hold the humidifier packs.

As I looked at this product online, I thought, "huh, it's plastic... that's kind of cheap" and "the reeds aren't kept on a glass surface, so how do I know that they won't get warped or something?" I was skeptical and still too attached to my Selmer case. But after thinking about it a while and considering other positive reviews on amazon and elsewhere, I decided, "Well, it's less than $20, so it's worth a shot. If I don't like it, I don't have to keep using it."

When the produce arrived, I was pleasantly surprised. It was better quality than I expected. I wouldn't say that it's super high quality like the reed cases with wood and velvet, but it's pretty good for the price.  Although it's plastic, the outside has a soft feel to it, and the case closes securely with a thin rubber ring along the edge to keep in the moisture. The humidifier pack fits perfectly in its designated place, and the reed slots are numbered. Because the case can fit multiple sizes of reeds, it came with a set of adhesive labels for different instruments (Clarinet, Bass Clarinet, Alto Sax, Tenor Sax, etc.). There's a small rectangle on the back of the case which is where the label is intended to go. Since I just needed it for clarinet reeds and nothing else, I didn't bother putting a label on it, but I was pleased to know that Rico was considerate to give me the option.

At first I wasn't sure what I would think about the individual slots for the reeds and the rubber bands and plastic backing. I was used to the flat piece of glass in my Selmer case. But after using it for a while, the reeds are working great, and the slots make it easier to keep track of each one. I find myself playing on more of my reeds than before.

After using the case for a few weeks now, I can say that it's great to use, and I would certainly recommend it to other players, beginners or advanced or well seasoned.