And then, the Covid era happened and resulted in staffing shortages, supply chain issues, business practice changes, etc. Some locations could not meet the pre-Covid standards. Should those standards have been changed, and should shoppers have been asked to address different aspects of the experience? At least one client suspended its shopping program in this Covid era because it was impossible for many locations to meet the usual standards due to chronic staffing shortages..
Is there a relative 1 - 10? Did the skeleton crew work steadily, politely, and without error to meet the customer requests? How important was a longer wait time, considering that logistically it was impossible to complete the transactions in a shorter amount of time (if timings were measured)?
I would expect more from a full crew than from the often scant crews in the Covid era. I would only want to do my best to determine that the current crew worked well in terms of teamwork, communication, maintaining a pleasant environment for themselves and customers, and achieving accuracy. Other people might want the previous standards to be met, like, yesterday, even though there would be too few people on duty to accomplish the work more quickly.
It is always subjective, even though we might be able to use objective data in support of whatever stance we present in our ratings and rankings.
My garden in England is full of eating-out places, for heat waves, warm September evenings, or lunch on a chilly Christmas morning. (Mary Quant)