This product has the same limitations as the nest and products such as the dropcam. It relies entirely on the company keeping their servers up. If they go out of business, or decide to end that service or kill the servers, then the product become quite useless. products in this field are generally used for 10-15 years+, as they are not fashion based, but instead, are designed as more of an appliance. Think about how many online services have failed in the past 15 years.
This is a product designed for people who do not think about the long term reliability of a product.