I like that it is easy enough so anyone can use it (and they will!) but not too simple as you need some training/education in order for them to get what's going on with your data. There are many things about this tool - from its ease of use to how well-designed all aspects feel when using it. The overall user experience has been excellent! We've used other tools before, including several different apps designed specifically towards tracking our own health. This one seems easier than others we have tried because there isn't much learning curve involved once you figure out where everything goes and how best fit into your daily routine. It is great for those who want something more automated then just logging food intake etc manually each day.