nope...pretty good so far. cheaper on amazon...with some comments about issues, etc. all the issues seem related to people expecting to get more out of this than it's advertised to do. i don't think it's as bulletproof as a sensaphone but it's also way way less expensive. i only need alarms when too hot or cold, not all the bells and whistles of a sensaphone. That being said, if I had a hardline phone I'd get a sensaphone, but I don't. so this is the best bet. all the cell-dialers were a couple hundred bucks + full cost for a cell line + cost for a monitoring service.