Questions for people who use your product: how often, what for, how easy it is and what's missing. It includes the "how would you feel if you could no longer use it?" question — when 40% or more say "very disappointed", you're onto something.
We've ticked a short starter set. Change it to suit you.
How they use it
Value
Ease of use
Alternatives
5 questions selected
Tips for a better product feedback survey
Replace "Feature A" and friends with your real feature names before you send it.
Ask active users and people who recently stopped using it separately — they'll tell you different things.
Track the "very disappointed" share over time; it's the clearest sign of product–market fit.