Hi Miguel and welcome to the Forum.
We have used El Ancla over the years more as a pit stop for a drink, coffee or so while passing that way.
Two years ago as we were resident nearby, we went for dinner. Seated inside and well within the view of waiting staff passing in and out, we must have been invisible to them .
And despite complaining it did little good, and that was after ordering normal popular dishes. It was just so slow!:eek
I'd say by all means try for a drink, or at lunchtime for a snack, and make up your own mind as to whether you'd go in the evening. Certainly very well placed and most particularly if you dont fancy the hike in to town.
Good luck and enjoy your hols.
Porto