That's it. No migration headaches, no touching existing data, no breaking anything. Adding columns to a live table is one of the safest DB operations there is. The only thing that's genuinely hard to change later is the rating_tier enum — adding new values to an enum in a live DB with existing reviews is messy. But you're not touching that, so you're fine. Bottom lifgagaffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffnvbn