Hootsuite Pro is used daily by my team to ensure that posts are made on time and responded to as well. We utilize Hootsuite Pro to follow conversations, manage mentions and provide overall customer service for our clients' accounts.
When I originally evaluated Buffer, I found Hootsuite Pro to be more user-friendly and affordable. I haven't evaluated Buffer in a long time, but I'm happy with Hootsuite Pro and don't anticipate a change.
Well suited for consultants who manage multiple clients. I don't think that small business owners really understand how to use Hootsuite Pro effectively. To get the most benefit, it's important to also understand the social media landscape and take the time to post to each channel.