The one question you can't ask is, "Is this feature actually good or not?"

The crucial people to get your product started for the first 6 months are not who will be using it 3 years later.

Who you talk to is just as important as what questions you ask and what you pull away from it.

The most common mistakes are showing people your product- don't show them your product, it's sort of like telling them bout a feature.

The other mistake I think people make is talking to who's available rather than talking to who they need to talk to.

Users think they know what they want, but you get the horseless carriage effect where you're getting asked for a faster horse.

That's actually one of the most disappointing things about doing user interviews and user feedback, which is why I think... people don't do it. You're going to get negative news about your favorite pet feature most of the time.