I don’t know if this is applicable to a restaurant review guide, but:
I find The Wirecutter / Sweethome to be really great for consumer reviews. Specifically, because they’re transparent about the qualifications of the reviewer, and transparent about the criteria on which their subjects will be evaluated, including “we interviewed X, Y, Z and they identified a, b, c as the most important metrics because of R.” So I know why I should trust the author, their metric choices, and the results - which makes it easy for me to decide whether their judgment reflects my own priorities.
That seems like a lot more effort, in a distinct vein, than the usual restaurant review. Food is, of course, more subjective but the usual review seems like a highly evolved version of “I liked this.” I don’t care if a reviewer “likes this,” I want to know if they liked it —and- an indicator of how or why to generalize those results to my own tastes.
