We really enjoyed our stay at Onur's apartment. It is very clean and well suited cozy place.
WiFi is good and allowed me to work freely. It was very important for me as software engineer.
Apartment is surrounded with parks. Our dog enjoyed long walks around the beach and so did we.
If you need to get to the tourist center you could take a bus or a tram, but we almost never used and preferred to walk to Galata bridge on foot.