This application has been very helpful in organizing my work flow, especially with clients who are out-of-state or remote! I love that it allows me access from anywhere as well which makes for much more reliable communication than other applications such as Skype/Hangouts etc..
The only downside about this app would be how some things can get lost within your account (sometimes you have no idea what was sent where). Overall great product though! Definitely try them if they're looking to organize their communications!! You'll feel better once everything gets organized!