We had a good long-term stay of 2 months in Basak's apartment.
The apartment was clean and tidy upon arrival, there were enough towels for everyone, heating and warm water worked fine.
We were only able to check-in 5 days after our arrival which only became clear after booking but Basak offered us to cancel the booking, and she refunded us the 5 days, so that while it would have been better to know that before booking it turned out fine.
Except for that, the apartment was just as described. There is a comfy living-room, the rooms themselves are fine, 2 if them are a bit bigger and one is smaller. The kitchen offers everything you need to cook. There's a TV and lot's of DVDs for movie night. There are many big windows so it's a bright place, and also a small balcony.
The area is a quiet neighbourhood, there are several supermarkets very nearby, you can also get something for dinner or breakfast in the immediate neighbourhood. You can reach Besiktas on foot in about 20-30 minutes, or by bus in 10 min.
Overall, Basak's apartment offered us a nice home for the two months we spent there!