PROS: Clean, bright, spacious duplex apartment in vibrant Müeyyedzade area. Building felt safe, WiFi was good, no problems with heat or hot water (but use only 1 shower at a time), kitchen/laundry appliances worked well. Lots of restaurants, shops, ATMs, and Galata Tower just steps away. Smart TV worked well. Mgt is hands-on and responds promptly to inquiries and requests.
CONS: Elevator worked only intermittently, making the apt a 3rd-floor walk-up most of the time. Mgt did provide help with carrying luggage up and down the stairs on arrival and departure. Calls-to-prayer from nearby minaret are quite loud. This added to the cultural experience for us, but others might feel differently. Using Uber was challenging due to notoriously heavy traffic in the area. Just keep trying when drivers repeatedly cancel trips. Can flag down a taxi on the street but some drivers will overcharge.
Overall, we would like to stay in this apartment again. Just confirm in advance that elevator works.