No probs flying into it, just get the charts off the AENA website or Jepps and off you go. The AENA website also has the price schedule for landing fees, parking, etc., if you can find it. Last time I was there, maybe two years ago I paid about €12 for landing and parking.
The ARO might be a bit difficult to find, just ask for directions to "operations", it's through a service door and up a flight of stairs or two.
Nothing much in the area to see, IMO, apart from the amusement park (can't recall its name).
Everything else pretty much like every other AENA airport, well except that if he hasn't been given the sack yet, one of the controllers is a right cunt and seems to enjoy making life difficult to the lads from the local training outfit. You should be alright though, he can't give you a hard time as he doesn't speak much English