Deniz is an amazing host and her apartment is pretty good for large group of people. We were party of 8 stayed at her apartment for two weeks. She arranged transportation from airport for us and welcomed us with complementary refreshments. She shared tips about things-to-do in Istanbul which was quite helpful. The house was clean, kitchen had the necessary silverware, and kitchenware. Fridge was working really well. Shower was clean and I love the pressure of water in shower. The house has 4 bedrooms. All of them were great but the bedroom that has window to the street is noisy and imo needs acoustic glasses to absorb the outside noise. Plenty of grocery, butcher, and fish stores around the house. There's a bus stop in less than 1 minute walk from the apartment and it's quite convenient to get to different places in istanbul. Apartment is on a hill and walking up the hill could be challenging. I tried it 3-4 times and it's a good work out to burn the delicious foods I had in Turkey. Deniz arranged complementary cleaning for the second week of our stay which was nice.
The only downside of apartment was the renovation upstairs. Make sure to check with Deniz about it. Specially if you want to stay in the apartment from 9:00-5:00 resting. It's gonna be noisy.