We stayed here for 3 nights in November 2021 and had a great stay! 2 kids (5 and 8) and 2 adults. Very convenient location and a flexible cancellation policy (which was a key reason we picked it as with Covid you never know about last minute changes). 2 bedrooms, entry way, living room with kitchenette and bathroom.
Bedroom 1 was smaller, with a smaller 2 person bed (US Double or so), 2 night stands, shelving, and hanging rack for clothes. Bedroom 2 was larger with a larger 2 person bed (maybe about a queen?), 2 night stands, shelving, desk, and chair. Entry way had a washing machine and shelving. Living room had a TV, sofa, hanging chair, shelving, and kitchenette. Kitchenette had mini fridge, sink, Turkish tea maker, and a hot plate with 2 burners. Plus counter with seating for 4. Decent amount of glassware, minimal other supplies--had 1 pan, no pots, minimal utensils. Clearly people don't typically cook here, but we did use it for simple breakfasts of mostly already prepared foods. Bathroom has sink, toilet, small shower.
Yusuf was incredibly helpful on arrival and had several people help carry our luggage. The apartment is 2 flights of stairs up with no elevator. So it was handy to have luggage help. He is very nice and prompt with communication. He works right under the apartment, so is able to help as needed.
The location is great. It is very close to the Galata Bridge, making it an easy walk to Galata Tower (uphill) or Egyptian Spice Bazaar (just across the bridge). Karakoy neighborhood has a ton of restaurants and a nice nightlife scene. We enjoyed walking through it for dinner one night.
Very nicely decorated apartment. You can tell he put a lot of thought into it. Also very clean. Would stay here again. As it is in a busy area with nightlife, it is not quiet at night. We were 2 stories up and could hear city noise, vehicles, etc. It is fairly near a main road. We brought a noise machine and this let us sleep. I suggest the same if city noise bothers you.