We stayed at Okan's place for 3 nights, it is close to taksim square just 5 mins walk but yet not so close that the noise from istiklal street could disturb your sleep at night, this in my opinion is a very positive point about this place you can walk to taksim any time you want and yet sleep peacefully at night.
All of the staff is very nice, cooperative and very helpful and there is always someone present at front desk to help. The complimentary breakfast is also very tasty.
I would like to stay here again.
And I would definitely recommend this place.