The place is great! I rented it for my parents and myself. It's clean: a maid cleans the apartments everyday, changing towels and bed sheets. It's very pretty, just like you can see in the pictures. Beds are comfortable.
Sedat is very quick to reply, and is really concerned that guests have a good stay.
It's near to everything in the city center, 16 minute walk to the Hippodrome, 9 to the Grand Bazaar, 4 to the closest bus stop, 7 to the closest tram stop, 17 to the nearest metro stop.
It's right next to a mosque, with a single minaret. So you'll hear the prayers a little loudly, I think that's a positive thing though, it adds to the experience :D
The washing machine is outside the apartment and for a price.