Gouging! Way overpriced.
This product is a great idea. It works pretty well, although it doesn't always register when I drink and keeps flashing. Doesn't work at all with a straw. Still, it reminds me to hydrate and I really need that. My only real complaint is that it is worth about $5, not the $25+ that I paid for it. I hate that it is the only thing I could find that does this job. The manufacturer/seller should be ashamed for charging so much for a very basic gadget. If you can, wait until someone with ethics makes something that does the job that this product does.
Rating: 2 stars