Cannot say enough good things about our stay! Onur was so helpful and responsive from the beginning in helping us get to the apartment and arranging timings for us. Our flight arrived at 6am and although check in was not till 2pm he was kind enough to arrange another apartment in the building for us to rest in and have some tea after we were so tired from the travelling whilst our room was getting ready.
The apartment itself was spotless and was everything we needed for our stay in Istanbul. Ismail who was the apartment manager was amazing! So kind and so helpful with everything we needed. From helping us with our luggage, to arranging our taxis his service was really lovely and made our stay that much nicer.
Only thing I would point out as others have mentioned is the location is up a hill (as are a lot of places in Istanbul) so just be aware for those with mobility issues.
But overall a fantastic stay, thank you Onur and Ismail!