In reply to Marek:
We spent a week there climbing up to 5+ without running out of things to do. Both grades and bolt-spacing varied enormously.
Some 5s were desperate, some were easy enough that I solo downclimbed them.
One of the best routes was this one
Espolón Oeste + Maldita vecindad (Peña Sirio) (5a)
the crux pitch had a 30m runout, subsequent pitches were closely bolted, go figure.
This one was also good, and well bolted where it matters
Ziggy Stardust (5c)
We had a couple of days at Patones for variety. The older lines seemed tough for the grade; the newer areas (especially Zona de Arriba) were a couple of grades easier than advertised.