It's the best people watching place, but I think it's expensive, especially since they started adding the obligatory service charge. I used to like to leave the old fellas a tip, but find that now not so much as it just passes my acceptable price limit. Well, considering the years I have sat there there week in week out drinking beer from a not so overly cold fridge (the beer is served at a perfect drinking temperature, and so if you have not finished your bottle within 5 minutes is has lost it and not so enjoyable). Anyway, point of this was to mention the road works right outside, are they finished? I expect so as they were still at it 4 weeks ago, but didn't seem to be doing much so you never know. Foodwise, it is terrible and not so cheap either.
My favourite watching place recently has been the German Erdinger biergarten down on the Malecon beside the Plaza Baron, you won't get much to eat in there before 5 or 6pm, and by then the bars in the Plaza Baron are open and so it's much more relaxed over there and even better people watching (but watch out for the children in cars, it can get pretty carzy).
But it is difficult to find a place that will not be selling food at all. Snack like places are going to be Hooters, and TGI's in Acropolis, or there is the bar on the entrance that doesn't do food, but I don't recall the name, I don't like loud music and so never stop off there. I prefer to freeze my a$$ off while drinking in TGI's, eating wings and watching 5 different sports events at the same time.
Other than that, you can go to one of the off licenses on Gomez and just sit on the car and drink like the 'happening crowd' of Santo Domingo seem to enjoy doing so much.