Kardelen is a great host. Quick to respond, excellent English, and very affable.
The space is clean. The washer / dryer are in good working order. The shower is hot and has good water pressure. The bed is comfortable. The space is a good mix of classic Istanbul and modern convenience.
The apartment is a two minute walk from Galata Tower, with restaurants and bars and cafés immediately at hand. A ten minute walk takes you to the water front.
Aces all around.