This very apartment made me seriously consider moving back to Istanbul from the Netherlands. I lived here for more than 20 years and I cannot believe it is the same city that I am seeing from Mr. Cankat's terrace. That is a life changing place here, facing two continents, plus an island in between them. (Considering there are 7 continents, staring at two of them is impressive!) I strongly advice everyone to come and experience "the capital of the planet" (by Napoleon Bonaparte) from Mr. Cankat's place.
The hosts are a traditional warm Turkish family. They help you with any kind of request immediately but also gives you your personal space. Which is the best combination for an airbnb guest in my opinion.
The apartment is a stylish attic with a big terrace. And it is extremely clean. Eveything you might need during your stay is with you, even kitchenware.
Long story short, I am so glad we didnt stay at the other places that I sent requests to. Staying here is the best thing anyone can do in Istanbul. Theoretically speaking, if you had a telescope, you wouldnt even need to get out of the apartment to see everything in Istanbul.