Medical Alert Jewelry

Does anyone have experiences w/ any of the medical alert jewelry companies? I need to get a necklace or bracelet, and a company called medicalert looks really good - from looking at the engraving on the bracelet there's a phone number that can be called 24hrs a day for more medical info/ meds, other medical conditions etc. It's a monthly fee of about 35.00, plus the cost of whatever jewelry (varies from really cheap to crazy expensive). It looks like a really good company, and I don't see anything comparable, but thought I'd throw the question out here in case any of you have info that would help.

Thanks!

Happy weekend

Jennifer