Çinar has been a good host during our 3 nights stay in Istanbul, he was very helpful lending me a hand get our luggage up the stairs. The apartment itself is nice and cozy and in a great location only a few minutes away from Galata tower and just a stairway away from the streets that will help you explore the rest of the city. Check-in and check-outs were smooth as it's self check in. The flat doesn't have blinds so be sure to bring a sleep mask If you're planning on having some sleeps during daylight if the light bothers you.
My only disappointment though was the listing saying "Free Parking on Premises" which was only 1 street parking spot that was rarely found empty, Çinar was kind enough to send me locations of 2 near public paid parking lots I used the Karaköy parking where you pay between 8 to 60 TL max a day depending on the time spent.
Nevertheless, I would definitely recommend this Airbnb and Çinar as a host and would come again in the future.