The Efe&Memet apartment is amazing. The location is perfec to every way you want to see in Istanbul. Metro statikn is just 100 m away, bust station is just across the street, there are a lot of nice shops and restaurants. Memet was so helpful with all informations about the city, my check-in was at 2 am in the morning and he still met me in the apartment. Really nice place and I recomend it to every Istanbul traveler.