Well, i have a lot to write i think, but i will start with the positive side.
First of all, the position is great, it's like 1 minute on foots and you'll be in Istiklal street, which is one of the most famous places in Istanbul. There you could find anything you need until late night.
The best part of the apartment was the bathroom. It's big enough, and there is always hot water so you can take a shower whenever you want.
The cleaning is good, and offered everyday (you only need to hang up a plate that says that you want the room to be cleaned).
The bed was quite comfortable, and the team who works there is very helpful and nice! The are always ready to help when you need (if they can).
The TV isn't smart, but it has some channels that helps sometimes (i was able to see some matches of the EURO 2020 on TRT1)
So, shortly, i can say that the place worth the price.
BUT, i had some troubles that couldn't be solved.
First of all, i booked the room, which i saw here, but for some reason when i tried to extend the period from 10 to 12 days, my room was changed and Ayshe told me to send a request to their e-mail if i want to see my new room. I didn't refuse and later i saw the pictures which was almost the same as the ones here.
But when i checked in, i found out that my new room is the farest from the internet router, which made the internet soooooooooo bad (it couldn't even use it sometimes because it disconnects). I was very disappointed. And what makes it worse that i the signal of the sim card is so bad in the room, too! So i couldn't even use my private internet.
The reception tried to help by restarting the router, while Ayshe just said that their Internet subscription is the best in Turkey and restarting the router might help! I asked to change the room, but they refused.
The second problem was that the breakfast wasn't included as mentioned in the "Services" (It has been edited one week ago into "provided"), but i said okay since i found out that Ayshe wrote in the description that the breakfast can be provided for 6 euro.
The building is quite old, and some parts of the floor in the room make noise when you walk on it, which makes the walk a bit hard at late night when you have a partner in the room.
You have to forget that you have a balcony in the room, because you have no view, it's like a huge wall right in front of you. You get no sunshine in the room either.
So, If you take what i said in mind, so you can surely stay at this place because of it's good service and location.