Attention! There was only one serious issue that affected this review, so please, read carefully.
The property is located in the very heart of Galata (literally a block and a few steps from the Galata Tower (which is being renovated as of September 2020, but I hope it will reopen its doors one day)). There is a small grocery shop nearby and the Metro and Funicular are in the walking distance. We used taxi to reach the place.
The property manager was very nice, and while the things were cleaned up for us, he offered a coffee in a cafe nearby (which is a nice gesture). Actually, I have to stay that despite the issue that we had with the property - the owner/manager was one of the best hosts I've ever seen from the hospitality standpoint.
The flat is in an apart-hotel block. The building is narrow, but there is an elevator, which was handy given the suitcases.
The flat featured literally everything and we were able to enjoy lovely time on the terrace, having breakfast and dinner/wine with the view over Bosporus.
The only issue that we have experienced (and which made us depart early) were the bedbugs. We woke up one day to discover a good dozen of bites on myself and a few less on my partner. It was unfortunate, as the flat was super nice and we did not want to leave, but having to spend the entire vacation being bitten is not something desirable indeed.
The host came quickly and even offered us a taxi ride to the hotel we booked instead, which was very kind of him. Because this flat is nice and we were very happy with everything until the bed bugs bites,, I hope the owner will be able to get rid of them. This issue aside, I really recommend this flat, as it was super central and super convenient.