Abacus is one of the newer restaurants in Camana Bay, its been open for a couple of years or so. Somewhat pricy but nice ambience with outdoor seating along the pedestrian street, or dining indoors as per your preference.
I was with a group of people and our conversation was very animated and did not include comments on the food, so I can only post my experience - hope this helps.
We opted to sit outside and enjoyed a good breeze. I'd recommend finding out where the loudspeakers are, and sitting away from them as the music got pretty loud by the time we were halfway through our meal.
My mojito ... I've been here before for mixed drinks, and they tend to taste watered down. I'd forgotten my resolution to get a beer or wine next time I came here.
For my appetiser, I had oysters in the shell, with a creamy garlicky sauce, spinach and breadcrumbs. It'd probably taste good, but they were lukewarm, and the heavy gunk over the oysters totally drowned out their delicate taste. And a couple of times I found myself eating bits of shell.. At $3.50 an oyster....
This was followed by the beef tenderloin which came with fingerling potatoes in a balsamic reduction with truffle oil, and some baby green beans. The beans were quite raw, but everything else was really excellent. The meat was done exactly right.
For dessert, I got the lava cake with cookies n cream icecream and a little chopped fruit. I'm sorry to say that this was not distinctive in any way.
One of the others in the group ordered the amberjack sashimi and was not thrilled about the sauce that was drizzled over. Too much personality, was his verdict, it drowned out the flavour of the fish.
The funky sundae seemed to be fun but not distinctive either.
I'd probably go there again, but just an entree and go elsewhere for dessert. Oh, and I'd sit far away from the loudspeakers. Great ambience, busy scene, attentive waiters.