I got there about 9pm on a Thursday, and sat at the bar; had a delish turkey burger topped with grilled onions and avocado, etc. Really good; also ordered the sweet potato fries and they were great, too; but what really bowled me over was the dipping sauce; I asked if they sold the dipping sauce and they said they didn't but it was a standout. If I remember correctly, my waitress was Natalie and she was fantastic....very personable. I went back the next night and ordered the same thing to go, since I was pretty bushed from a day walking around downtown St. Augustine. I got to the hotel (La Fiesta...also highly recommended and just a block or so away) and discovered the turkey burger didn't have the onions, but it was still yummy. Mango is more a restaurant than a bar, prices are reasonable, and the owners seemed really cool, too.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.