I'll say upfront that this is a great idea, but as a longtime Netflix subscriber I have to say the "satisfaction" polling I occasionally receive seems a bit too simple for such a purpose. For example they ask you how the quality of your stream was, and on HD content I do have to say "unwatchable", but if they are using it to triage software improvements, I wish they was also a chance to say "but I know my broadband is beyond sucky and I didn't really expect anything better than that".
In other words what matters is not just satisfaction, but satisfaction as compared to expectation.
And then there was the "multiple queues" incident where the company agreed to keep the feature even though only a relative small percentage of subscribers really used it.
It's a good way of doing business.