It is (in my area) "a mystery shop followed by an announced audit". I did two of them this week. They require 7 (or 9, if there is alternative fuel available) photos of the exterior and additional pictures when there are "issues". The questionnaire is somewhat long (24 pages) but after doing a couple they are easier than some other gas station audits I have been doing for years. In my area these shops come with an "incentive", the scheduler I talked to told me that he could not give me more than $25 at this time but as I was very close to one location and live about 3 minutes from the other the pay was ok. One thing to keep in mind is that the company expects the audit to take at least 30 minutes. As we have to look at many different details all over the store and forecourt that is not too difficult to do. Another perk might be that they reimburse up to $10 for gas and the in-store purchase (we have to buy at least $3 of gas). I have not "tested" that new limit as I have "too many" shops with gasoline purchase and don't really need to buy the goods from convenience stores. I am sure for some shoppers the reimbursement makes these shops more interesting.