“Your most unhappy customers are your greatest source of learning.” Bill Gates
The best places to collect customer feedback are where your happy customers are most likely to become unhappy: during onboarding and during customer support interactions.
Unhappy customers:
cost you money
lose you money
show you opportunties
There's 3 ways to stop happy customers from becoming unhappy:
better onboarding
better alignment
better customer support interactions
I explain how in this article
https://anitatoth.ca/unhappy-customers/