Years ago there was a big controversy among researchers and consultants about the efficacy of using customer satisfaction measures to assess the effectiveness of sales campaigns or to compare different sales groups. The debate is similar to the one about employee commitment versus employee engagement. The argument was that customer satisfaction was a nice-to-know attitude but that it was not really tapping into the behaviors that drive success.
The good news is that today much of the controversy is really semantic. Most surveys that claim to measure customer satisfaction also measure likely behaviors such as likelihood to recommend, likelihood to purchase again in the future, etc.
The bottom line is that a survey, or any other measurement, must give us information that really tells us how successful we are and really tells us what to do to get better.