Hi - I've been to paradors - just not in Northern Spain. In my experience they were lovely - unusual buildings and luxurious without being impersonal like some high starred hotels. the breakfast and rooftop pool at the Malaga one was to die for. I was a bit worried that being owned by the state they'd be a bit basic but not at all. Go for it - esp if you're leaving teh kids behind! Check on trip advisor for reviews of any particular ones.