I had it but went for the zephyr as I travel a lot for my job. It's very good, put your ear molds in it as well, the uv light will help with ear infections etc.
Would recommend fully opening the battery draw to allow the aid to be dried inside.
I have the Dry & Store global, and a Zypher (it came with my cochlear implant package). Haven't used the Zypher yet, only the Dry & Store. Don't use it very often as it's extremely dry in Wyoming. But when I do use it, it's nice and it works. When my hearing aid starts giving me issues, I stick it in the Dry & Store and that helps.
I use one for my CI equipment, but unfortunately you do have to purchase dehumidifying bricks for it to work. You can use a renewable desicant, but in my experience they don't seem to be as effective as the bricks. I just don't have the patience to dry a desicant in the oven, the bricks are worthwhile.