Almost everywhere we went while in the Manuel Antonio area had good food, including food provided by tour companies in the area. However, the food at Bambu Jam was pretty bad. We shared two appetizers and a dessert, and no one in our group liked any of it. We also ordered three mixed drinks, one of which was supposed to be a "long island iced tea" but tasted instead like bubble gum / candy.
We were also there on "ladies night"; not sure what all that was supposed to entail, but there were a lot of skeezy men hitting on women in there.
Unless that's your thing, don't waste your time or money on this place.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.