I like that it is free, easy to use, and has a lot of different features. It can be used for both personal health tracking as well as business health monitoring. The interface could be more intuitive but it's not terrible by any means. I've been able to track my own temperature with ease which helps me feel comfortable about staying home when necessary. My boss was also impressed with how easily we were able to keep our employees informed about their temperatures during this pandemic. The fact that I can access my data from anywhere is amazing! It's also very easy to use, so it doesn't take much training for anyone new to use it effectively. Sometimes there are lag times when accessing info but this didn't seem too bad when compared with other apps out there at similar price point. We've been able to track our employees' health throughout their shifts which has helped us make important decisions regarding employee safety.