Ömer's place is really clean, 10 mins walk to Istiklal St & Taksim SQ. Loads of local shops and bakery around it.
The area is a bit hilly and the apartment is suited on 4th floor so you need to deal with the stairs but soon you get to the balcony there is an amazing view of Istanbul City, historical mosques and Mamara Sea.
Ömer is a great host, he has helped us with all required information such as taxi reservation, local shops and so on. His communications and responsiveness before and during our stay is the best I've ever seen. (Almost always available to the calls/messages which makes you think that he's a robot until you meet him in person!) Besides, he is a wonderful person I enjoyed having chat with him.
The place is newly built and very clean with all you need for a holiday stay. I would definitely recommend this apartment and will definetly book it again on my next trip to Istanbul.