The design is clean and simple, allowing me to focus on the content I'm curating rather than on the platform I'm using to manage it.
Team collaboration features are lacking some functionality that would help the team be more productive in suggesting, curating, editing, and approving content for distribution. Costs prohibit us from increasing to larger team packages (5 team members is a little too small for our situation).
Buffer focuses on simplicity of design and keeping itself out of the way of your content focus. This is great, although it may not have the "bells and whistles" of competitor products, we found that most of that wasn't really necessary in our case and only got in the way or distracted us from what we needed to focus on.
Coordinating social media across multiple channels with a small team.