Great functionality and ease of use at a reasonable price
Vision Critical is known as a great panel management firm, but I was underwhelmed with their tool itself. Deployments were complicated, surveys required almost basic programming knowledge, and my team struggled with their reporting tool.
Confirmit could do everything we wanted in terms of features, but it too required specialized expertise, far more training, etc.
Simpler tools like SurveyMonkey, NetReflector, Survey Gizmo, etc. just didn't have the question types, advanced logic, quota management, email tools, etc. that Qualtrics and the above tools do.
In the end, Qualtrics was a nice middle ground. It was way easier to learn and use than the high end tools and provided all the functionality of the high end tools. It had a middle ground price as well that seemed very reasonable. They also seemed very willing to take my feedback and suggestions seriously.