The building is newly built and has elevator which is a considerable point in the old Istanbul. However the front of it was under the construction and my parents had a hard time passing it and entering the building.
In my opinion the most inconvenient point about this apartment is the neighborhood. Getting to the Istiklal street takes around 20 min walking through an uphill crowded street which I do not recommend it if you travel with elderly people. Taking taxi is another frustrating process and you may not find a taxi to take you to Istiklal/Taksim! Public transportation is also not that much convenient in this neighborhood.
The most positive point about this apartment is being new, clean, and classy. If you like walking long distances you will like this apartment.
The host (Duygo) was friendly and flexible during the checking out process.