It is universally accepted that "all you can eat" and "high quality" are at opposite ends of the culinary spectrum. Vai e Volta messes with this equation in such a fundamental way as to leave the experienced diner doubting the very fabric of space and time. It would be tempting to compare Vai e Volta to a churrascaria where meat of often dubious provenance is marched around the floor for a flat rate. To do so would be a disservice, as this place dispenses with most of the traditions of the restaurant trade, and does it in such a way that you wonder how they can make money with such good quality ingredients. There is no overpriced wine, there is no high margin seafood or "specials". Hell, there aren't even any menus - and - the place isn't even open in the evening. What you are left with is the essence of a good meal - fresh fish, grilled a couple of metres away from where you sit. Simple salad, sweet potato and, frankly, joy. The "Grill Master" (for it is he who stands and grills for the entire lunch session) unloads prepared and seasoned fish from crates stacked next to a monstrous smoking charcoal barbeque and methodically turns the Bream, Mackerel, Salmon, Sardines, Bass and other fish that happen to turn up on their doorstep that morning. These are stacked onto plates and danced around the floor, ending up on your plate - for as long as you have the desire. The experience is powerful - an intoxicating mix of fine fresh food, a pleasant ambience at a price point that is difficult to believe. Very highly recommended.