I spent a week in the Elif's apartment and I enjoyed my staying a lot! The accommodation is located in the peaceful green area, far from the city centre, but it can be easily reached by Marmaray - Pendik station is just 10 minutes walking distance from the spot. The aparment is fully equipped with all amenities. And the huge advantage it's a terrace with a stunning view to Bosphorus and the Prince islands!!!
I was really pleased by Elif's and her brother attitude. They are very hospitable, friendly and always ready to help! Highly recommend the apartment and these guys!