A customer at your cafe discovers their latte is lukewarm or the Wi-Fi is down. Instead of standing in line again, they might just leave a 3-star review about the 'unreliable atmosphere.' Change the path with a small QR code at every table.
The customer scans, selects 'Drink Issue,' and your barista gets a silent alert. You bring them a fresh, hot drink to their table. This 'premium service' recovery turns a mediocre visit into a 5-star story about your cafe's hospitality.