The apartment was very nice & clean and as described, it had everything I needed. It's in a small street, so not much noise and I didn't have problems with sleeping - the bed was great, and the bedroom also has really dark window blinds. The 3rd floor climb without an elevator wasn't hard at all. It's also very well located, a few minutes walk to the center, to good restaurants, Dia supermarket, 15-20 min to the port and the beach.
Stuff like WiFi, microwave, washing machine and cooker worked great. The extra towels were also nice. I only had a bad experience on the first day, when it was very cold before the heating started working (Spanish buildings aren't built well for winter), and when I got stuck in the bathroom because of a broken door handle.
Communication was also good, I only saw Jesús briefly on one day (I was let in by his non-English-speaking neighbor), but he always responded to messages pretty quickly.