Can only say good things about Pedro.
Had a lovely stay with him. The room is basic and as per the picture and was spotlessly clean and comfortable, as was the rest of the apartment.
When I arrived, as Pedro knew I was taking a train early the next day he walked me to Chamartin station so I knew where I was going the following morning.
He was very friendly, helpful and welcoming.
I cannot recommend him highly enough.
(Traveller note - the apartment is 5 minutes walk from Chamartin station but note if taking a high-speed train from there it will take a bit longer as your luggage goes through an airport style scan before you board the train. I had lots of time so it was fine.)