I like how it has an easy way of creating groups, organizing tasks etc., which makes keeping track easier than with other apps we've used in past! It's also very simple as far as adding friends/people who use your service goes - just click "add" or add them through their profile info if you know they're using espresso already (and have given permission). Also love being able to create sub-groups within my main group so organization isn't too difficult when working at different times during dayโฆ