Trumpet mouthpieces (and their results) are so individual that it's hard to quantify satisfaction through a survey unless you separate the customer satisfaction from the product quality. I think this is because of the temporal nature of our business as musicians, and the marriage of personal satisfaction with the product. Rating your products very highly is easy from a quality standpoint. Does the product make my job as a musician easier? I hope so, because that was the reason for purchasing the product in the first place.