Review (4/5): Yes, this stuff works well.
Myro deodorant is really effective. I have used many natural deodorants over the last 20 years and they all fail after about 2 or 3 months, leave my armpits wet and gross or worse, make me break out. This is the only one I have found that continues to work! I have been buying it for both my husband and I and it works for us both. I have a highly physical, close to people job as a LMT and it has not let me down.
The only funny thing is the refills are cool and less wasteful, but not by much as they are also made of plastic. So they really do not seem as enviromentally friendly as you might think, but they work great and I will keep ordering.