In reply to Dago theruinmargalef:
I've stayed at the hut at Sta Cecilia about 20 years ago. It was manned, fairly basic but clean with running water and a shower. I think you could buy a meal there, but you could also self cater.
St Benet, we walked up to. If I recall correctly there was no running water and no loos. On that occaision it had been left in a right state. Of course it may have been done up since.
The campsite was fine on the same trip 20 years ago. Don't know if it open this time of year. I think there are also rooms available at the monastery.