People first:
Ramiz is a very kind, helpful and considerate person who made customized arrangements for us esp as my mother was traveling with a wheel chair and we needed at least a two rooms accommodation. He was very prompt and professional in email communique, replying point wise with details. It was due to his extra favors that we were able to travel to Istanbul. He also offered to shift us to another location when there was some disturbance on the roof due to weather and strong winds.

Place:
The place is wheel chair accessible i.e. has an elevator. The room is on the 4th floor with a shared dining hall and kitchen. The dining hall is almost glass walled and has beautiful view of Marmara sea, Bosphorus and Asian side of Istanbul. The two ladies, available during day time, take good care of kitchen accessories and are very supportive as well. All other guests in the building are high school students who use dining hall for studies in the evening in addition to breakfast and dinner.

The place is almost 10-12 min walk to main Sultanahmet area and tram station. The access to the place is not steep but has a couple of ups and downs. It is enjoyable for young but can be difficult for elderly. Most of the Sultanahmet area streets are stoned/bricked making it unsuitable for wheel chair. Thus my mother had to walk which was tiring for her. If one is traveling with elderly people, then they might choose an accommodation nearer to Sultanahmet main area.
Wifi internet had some problem as well but hopefully it must have been resolved after the router was replaced.