The apartment is really nice, in a great location. Our problem was with the check-in. We didn't have the house number and we couldn't reach Jo. After first returning our rental-car and carrying our luggage back, after an hour we finally received a message and there was the cleaning lady waiting for us.
She didn't speak English, which is not perse a problem but she showed us a little note to pay €15 extra for the cleaning. We were not prepared to do that and we had a lot of hassle in the communication about it. It is written in the house rules, but these are in spanish. Regardless of the house rules, there should be no extra costs.
It was a bad start if our last few days of the holiday. But Valencia is awesome!