I love how simple it makes managing social media for my business, allowing me to focus more time into other aspects like sales! It's so easy that even non-techies can use with minimal training.
The only downside would be if you're looking at having someone else manage your account (i'm sure they have plans in this direction). We were able to track our ROI from all campaigns easily through their analytics tool. This has allowed us to create custom reports which we then share internally as well as send out via email when needed by clients or prospects.