I had a great stay in Carlo's apartment.
Before booking I asked him if the place was quiet and if it had AC and reliable Wifi and it had all these things indeed.
I had some work to do so the location worked for me, but if you're coming to Valencia for vacation, keep in mind that this is not super central (city center is 20 min away by public transit, beach 40 minutes).
Interaction with Carlo was always smooth and friendly. He was there to check me in, check me out and always replied to my messages promptly.
Thank you for a nice stay in Valencia, Carlo.