Customer Service is a good sign..
... of a good company. not just because it makes customers happy, but because it shows a company CARES about their customers. They understand who they are building for, and i'm sure sensitivity to customer's feelings extends down to the engineers building the product. Often times, the things that make a product great are very low level details that arise as a result of the engineer giving a damn.
I know I said once already how bullish i am on the Wii.. but reading This Blog Post makes me even more bullish on the company.