We had a great stay in this stylish, comfortable, and huge apartment, right in the centre of Galata. Communication before and during the stay was great, there were no issues with the apartment, and the owner was onsite during the day. We loved the terrace, bringing food back to enjoy dinner overlooking the bosphorus. And we hadn't realised it is really two separate suites, perfect for two couples, or a family with teenagers- lots of space. You can't beat the location, on a very quiet dead-end right off the main street, a block from the Galata tower, and a short walk from the funicular at the top of the hill.
The only drawbacks were the stairs, because it is on the 3rd floor of a tall building (not really a big deal, but not good if you have mobility concerns) and its quite close to a mosque which plays the call to prayer 5 times daily on an amplifier, which means an early morning wake-up. But that is likely true of any apartment in the area.
We had a great stay and hope to return!