Have an app to alert you when you are about to enter a poorly rated establishment via Google Maps or a similar platform with grading systems.
Ensure that you don't end up sitting in poorly rated restaurants, overpaying for stuff and getting a bad experience.
Automatize and accelerate checking the ratings of service-based establishments such as cafes and restaurants.
Be more open to spontaneity as you do have the last warning fail-safe without spending half an hour on researching spots.
You choose the rating level under which you're not willing to go - like 3 stars.
Have the extension notify you when you're about to enter a poorly rated place. Working on a proximity sensor.
The warning can come in a dimmed red notification light on your phone whenever you are close to a restaurant, cafe, bakery or similar with a below 3 rating. When you unlock the phone it shows the name of the poorly rated place, just in case there are multiple service businesses adjecent.
You can select that there are no push notifications and that the app only lights the red when you unlock the phone. For the faster check instead of going to the map yourself and finding the place. The notifications go away on their own if you don't check your phone and just move away from the place.
The sound/vibration alarm goes off when you enter the premises and stay there for longer than 30 seconds. Can also be turned off.