Most of this small bar is taken up by the bar itself. This has the advantage of it always being easy to get a spot at the bar. Even if you don't there's a ledge going around the walls of the bar so there's always somewhere to put your beer.
You enter in either of the two entrances which are divided by the U-shaped bar. As you walk in you go down a set of stairs giving a good view of the whole bar. Order a small beer and you'll get a small tapas.