As a quick summary I suggested that stores add a device to collect quick feedback on your experience. You could even integrate into the eftpos machine to hasten the process.
I was delighted to be greeted by this in a duty free store whilst away on holiday.
How neat! A quick screen to let me provide some simple feedback. From the state of the machine I could tell it was well used.
Airports are a double sided coin as customers are only likely to visit a few times, so it’s harder to collect feedback (but you have a location monopoly so average service can prevail).
Some readers mentioned they had seen some in the original post but just wanted to share…