We're frequent visitors to SE-Asia including a trip last month that also included KL and Bangkok among other places. If you are looking for locals restaurant suggestions see our report from a trip a few years ago at A perfect First Day in Bangkok - Southeast Asia Travel. It mentions two places: Krua Apsorn for lunch and Pud Thai Thip Samifor dinner. We've eaten at both multiple times since then including both again in November-18 and are happy to report both are still great. A couple notes: Krua Apsorn no longer serves the stuffed chicken wings we raved about in the review (but there are still plenty of dishes to get excited about) and Thip Sami has opened a back room adding additional tables but there was still a wait of about 30 minutes before getting seated. Portions are a bit small at Thip Sami and we often find ourselves ordering multiple plates.