We really loved our stay at Bülent's place. The apartment is very spacious, with gorgeous high ceilings, old engravings and beautiful art. It has everything you'd need and more: Istanbul is quite hot and moist, and there was a dryer that gave us our clothes back in the perfect condition. There's an aircon in one of the rooms which's enough to cool down the whole flat, dishwasher & a lot of kitchen things, we didn't really need to buy anything for our stay here.
What we also loved is that the windows in the apartment are matte, meaning the neighbours can't see you, and the sun is not heating up the flat so you can chill there during the hot day. We've been working remotely here, and it's a very comfortable space for that, the internet is great by local standards, there are a few grocery stores nearby, etc. After a few days it feels like coming home saying hi to the store owners and cafe workers when you are coming back from the walking street.
One thing you might want to keep in mind is that the smaller bedroom and one of the other bedrooms are connected facing each other from bed to bed, and there's no door. There's also no door from this bigger bedroom to the hall. The last bedroom does have a door. As we were a group of friends travelling together it didn't complicate things for us cause we left all of the doors unlocked anyways.
In terms of location, this apartment is AMAZINGLY well-located! We've been walking around the city with our friends, and we all agree the location couldn't be more perfect! It's like 2 minutes to the most lively street in town, there are a lot of restaurants and cafes, bars and dancing places in the evenings, there are 2 different metro stations, and the Galata bridge at sunset is a wonder. And the best part is that the entrance to the building is not in the street but rather in a small close where there are no cars and noisy people. Local people often chill out in the streets talking to each other, so if your windows are facing the street, things can get a little loud at any given time. Here, you are enjoying your own space when at home and get submerged in the rich local culture once you go out, so the flat is a great place to rest.
The host has been the most accommodating, we've had a couple of questions about the neighbourhood, etc, they've answered them all and suggested we try some things (like local sweets at a certain store), and all of their recommendations were spot-on.
All in all, we completely loved our stay in this apartment — we had to stay in Istanbul a little longer, and we would've prolonged our stay here for sure if only it wasn't already booked! I highly recommend you staying at Bülent's place.