We had a great time staying at Apler's place. The apartment is exactly as it is shown in the pictures. I was very skeptical about finding a good place from what I had heard about Istanbul. But I'm very happy that we ended up finding an honest host and stayed at Alper's apartment.
Here are some positive points:
1. The translator and Alper's representative Idrees was super helpful and polite. we communicated beforehand and everything went smoothly.
2. The apartment was very clean and they also sent cleaning service two times during our stay.
3. one of the bedrooms and the main hall have AC. we did not use them much as the weather was very nice but they were good in the afternoons and on a hot day.
4. The place is 10 mins walk to Osmanbay metro station.
The only points to note:
1. make sure to clearly ask about the detail address. we had a small confusion but resolved soon when our host arrived.
2. One of the bedrooms is facing the street which might be a bit noisy at night but it wasn't a problem for us though.
Overall, we had a pleasant experience. Thanks to Alper and Idrees.