The apartment is on the ground floor, and was very tidy and clean. We had everything we needed, although we didn't spend much time at the house as we wanted to see as much of Istanbul as possible!
Having a washing machine and dryer was great, and leaving an IstanbulKart (bus pass) for guests is a great thought (even though we didn't use it in the end as we love to walk everywhere).
The location is about 15 minutes away from more of a central part of town, (Istiklal street for example) so it is good if you want something a bit quieter. The neighborhood is fairly poor, with lots of contrasts, poor lighting but friendly people.
We had a great stay and the apartment was perfect for what we needed. We would definitely recommend it!