Staying at Koko's was very convenient. I like the clean design of the place and that it's located in a quieter neighbourhood of the city. Cafés are in a 10-15 minutes walking distance but Koko also offered me to have coffee and breakfast at the place. He is a very sweet host and gave some good recommendations on what to do in Rotterdam. Because I was on a work trip I didn't get to spend much time in the apartment or the surrounding but I enjoyed the stay a lot and found Koko to be super easy going and great to chat to. If you're looking for a calm place slightly off the center I definitely recommend staying with him.