I like that they are very well organized within their platform which allows for me to easily find what i need at any given time! They also have some really cool tools such as an API key manager so my clients can manage all of our keys themselves without having them access directly from us.
This is great when we're dealing with larger businesses who want more hands-off control over things rather than just allowing clients direct login credentials through facebook or twitter handles. It's not perfect but it gets the job done :) We use buzz mostly because its easy enought to get started quickly while still providing good functionality overall - no matter how basic you start out with your website/campaigns etc there will always be improvements needed along the way if working closely wth these guys helps make those happen quicker ;).