I will try to write this review with the most objective POV possible to justify the overall score.
I booked this apartment from Firat a few days before my arrival with an upfront note that I have a late night flight and will be arriving at around 3am, so I had to pay for the day that was before my arrival day as well to make sure that the apartment is ready for my arrival (standard AirBnb practice). Firat assured me that this is totally fine and that his friend will be waiting for me at the apartment upon my arrival. While at the airport my flight got delayed, so I wrote to Firat to let him know that I will be at the apartment around 30 minutes later, as the airline told me (or so I thought, it turned out that the delay went a full 2 hours). He assured me that everything's fine.
After I have arrived at Istanbul, I took a taxi that delivered me to the address swiftly, however with the overall flight delay I arrived at the spot close to 6am in the morning. The door was closed, the ringer did not work, so obviously I started trying to contact Firat first through airbnb messages then through a third party messenger app. It took me 16 minutes to contact him, during which I was sitting on my suitcases on the rather cold street at night and started to honestly think about looking for a hotel in the area and canceling the reservation. Then finally I managed to get in touch with Firat and a few minutes later his friends opened the door for me.
However, to my surprise, I was not let inside, but took by them across and a little down the street, where we climbed a set of stairs and finally entered the apartment. Which turned out to be a completely different apartment and not the one I booked. When I asked, why was I brought into a different apartment, the guys started telling me something about hot water was not running in the one I booked earlier. Being completely exhausted after a sleepless night I told them that I will stay the night here and in the morning I would like to move into my originally booked apartment, after which we parted ways.
Before I continue, here's the apartment that I stayed at - https://www.airbnb.com/rooms/732537289108725407?source_impression_id=p3_1666514802_LBPmO6CGN7hhz8gw It is nominally more expensive than the one I booked and has better views, but I always book my AirBnb stays guided by a set of my personal rules and preferences and I should note that I would not have booked this apartment if I saw it on the site, I just did not like it much, even by the photos and I booked the one I booked for a reason.
The next day I went for breakfast and contacted Firat and his friend who met me the night before again, asking them at what time I can move into my originally booked apartment. A few minutes later Firat's friend arrived at the apartment and called Firat letting me speak to him on his phone. Firat told me that the night before a different guest arrived and they mixed him with me and checked him into the apartment that I originally booked, that the said guest is also staying at this apartment for one more night and then leaves town, so if I want to move there I will have to wait one more night. He also told me how the apartment that I'm staying at is better than the one I booked because of the view etc. I let him know that while I have no major complaints about the apartment I'm currently staying at, I booked the one I initially booked for a reason and I generally am not satisfied with such a way of doing business. It is also beyond my understanding, how a simple name check was not performed in this situation and they did not just asked that guest what his name was and find out on the spot that it was not me. For these reasons I am skeptical and doubtful about the whole truthfulness of this situation.
After going back and forth in our conversation, Firat offered me to call a cab for me when I will leave and go to the airport as a compensation. I told him that I will think it over. Since I was in Istanbul for only 3 days and should've waited another night to move in I decided to accept his offer despite being against this way of doing business in principle. During my stay the apartment was fine except a few things - the shower had an unpleasant sewage smell after being used and on the second day there was no hot water. I thought that there must be some repair works in the system and left the apartment that day without taking a shower. When I arrived back in the evening there still was no hot water available, I decided to wait till the morning. In the morning, the hot water was still not there, so I went to breakfast and contacted Firat's friend asking to look into it, I was told that the whole building has hot water and that maybe I'm using the faucet wrong (seriously?). After I came back, the water was fixed, but I already had no time to take a shower, because I needed to check out.
Since my flight was at 16:45 and I had to check out at 12 in the morning the latest I decided to move to my friend's apartment and stay there before I need to leave for the airport. I provided Firat with my friend's address and asked him to call my cab to that address no later than 15:00 as we agreed. In response I was told that the taxi may not be able to arrive at this address (I