Magenetic has a top-notch group of account reps and resources working for them. They're resourceful, and ensure you're up to date on performance by way of frequent calls and reports. Rarely do I have a problem that goes unresolved for any significant amount of time, and often times, any features or suggestions made are implemented.
While we don't use their full product offering, it's nice to have the ability to bundle all retargeting, display advertising, and on-site/email product recommendations with one vendor. Review collected by and hosted on G2.com.