Product review (5 stars): Works great for sax reeds
I hesitated to buy this because I live in a humid area. However, I was experiencing warped tenor sax reeds so I decided to give this a try. I use it for alto, soprano, and tenor sax reeds, and it works great.  Reeds that have been stored in the case do indeed seem to play better, with no warping.  Note that the Boveda 10-packs are more economical than the D'Addario refills.