Everyone was very welcoming. The apartment/hotel is in a very clean state and the help they give is great. Everyone is at one's service all the time, they clean the apartment everyday and change the towels. The place is well equipped however with not so good WiFi connection (low signal) but I guess it depends on the room you get. The apartment is located just around the corner in Sur Hotel (a place in Sultanhamet) and it's related to the hotel. Basically is like staying at an hotel but feeling like you are in an apartment. Really good.
Also the place is very centrally located in regards of the tourist places in Istanbul. Was a perfect choose of location.