I like how easy it was to set up my team members accounts as well that are connected with our campaign management system (Nationbuilder).
It's very user friendly! We've been able use this software all day long without any issues or problems at work while we're out of town doing campaigns etc.. There really isn't anything bad about using their service other than they could be adding some new features but if you want something simple then go ahead :) They have helped us manage multiple teams efficiently so far which has made things easier overall when working away during events/campaigns ect.