Can is an excellent host. He is super attentive, always approachable and always responds quickly.
The flat leaves nothing to be desired either: it is clean, well equipped and the location is ideal. You can easily explore Istanbul on foot from there, also a tram station is very near and the port and a metro station are also within walking distance.
The immediate surroundings and neighbourhood are charming. There is so much to discover: small cafes, bakeries, restaurants, designer shops, but also a lot of antique shops, 2nd hand shops and cultural offers like hamam, mosques, galleries, museums etc..
And: everything you need for everyday life is close by - a small supermarket even in the building right next door. Nevertheless, it is quiet (the bedroom faces a courtyard).
I highly recommend staying in Can's apartment.