The dining credit is only useful if it fits how you already eat. In San Francisco, that means booking through OpenTable specifically — not every reservation platform counts — and checking that the restaurant is enrolled before you build a night around it.
A short list of participating spots across the Mission, Hayes Valley, and FiDi covers most routine dinners without much extra planning. Treat the credit as a nudge toward restaurants you'd already consider, not a reason to book somewhere purely because the credit applies.