We thoroughly enjoyed our stay here. The apartments are recently refurbished in a very modern style, including a really welcoming, chic lobby. (Here and there a couple of minor finishing touches still to be made but nothing to detract from your stay). Kitchen includes all you need to cook and eat in the apartment of you wish and bathroom includes hairdryer ladies, so don't worry to pack your own!
Yusuf and his staff are extremely welcoming and caring. We were served apple tea and Turkish delight on arrival which was well after midnight. Room was cleaned and towels replaced daily which we've not had at other air b&b's and made it more like a hotel.
Location is excellent, 5minute walk from the tram stop (we got public transport pretty easily from the airport), easy 10minute walk to Blue Mosque, Aya Sophia, Basilica Cistern etc and about 20minutes to the Grand Bazaar which is much cheaper in places than the shops around Sultanahmet area. But if you don't like walking, public transport is excellent and really cheap and the staff will call you a taxi if you prefer to get around that way. Be sure to get across the river to Galata tower and the surrounding area.
Thanks for a great stay Yusuf and a special thanks to Salim for his friendly welcome each night. Hope to see you next time we're in Istanbul!