I stayed t Ismails apartment for 4 nights in July. Everything was very clean and tidy. Checkin with the digital locks was very easy and the apartment is located very central just next to Taksim square, with Metro, Buses and the Airport buses just around the corner. Please note that (at least during summer when I was visiting) it's usually quite loud during the night, as it's very central and there are a few night clubs around. If this isn't bothering you I can recommend to stay there!