We ate lunch at Bar Juanito (c/Pescadaria Vieja - off Plaza Arenal) on our first day in Jerez. It's a lovely restaurant set in a little alleyway leading off Plaza Arenal. We sat outside at a little table with a brightly coloured tablecloth and pretty green chairs. Bar Juanito comes highly recommended in lots of guidebooks and it well known for its artichokes which, whilst very tasty, weren't as mind blowingly good (if artichokes can ever be mind blowing!) as I'd hoped. They were served warm in a house specialty sauce - plain and simple which let the artichokes speak for themselves. We also ordered a tuna and pepper salad which was fresh and light, although a touch too much of the local Vinagre de Jerez for me. The waiter recommended the hake which was done in a very light batter and cooked to order - fresh, light and very tasty! We consumed a fair bit of the house vino tinto which was extremely palatable (isn't anything after 2 glasses at lunchtime?!) - served from the bottle at the table.
All in all it was a good lunch and a popular spot with locals and tourists alike, but maybe after everything I'd read my expectations were a bit too high...!