Advertising experiment at restaurant grades

Advertising Experiment at Restaurant Grades

1. Given that there is already a set of Restaurants on the platform that have bought Ads, do you need an experiment? Or can you simply compare the outcomes of Restaurants and don't advertise?
2. In the exercise, which outcome is most useful to consider? Are there other outcome variables that you think would be useful to measure?
3. Should Restaurant Grades stick with their current design or switch to the alternative? How confident you are with your decision, and what are possible concerns you may have?