Javier's apartment is gorgeous! It's very modern inside with lots of nice little touches - we particularly made use of the coffee percolator!
The location is great, directly opposite a little supermarket and there are a couple of nice little bars and restaurants within 30 seconds walk. There's one at the end of the Street which had some really good gluten free breakfast options which was ideal for me.
In terms of the sites, the cathedral and alcazar are no more than 10 minutes walk away.
Javi was great at responding to messages and very prompt to arrive when we said we would (even after our flight was delayed and we had to reschedule). I can't recommend this place enough!