I chose Rifat's place because my Turkish good friend who used to be local in Istanbul recommended.
And I find my friend is perfectly right. This house sits in a perfect location not only in Nisantasin but also Besiktas, that you would not want to miss. Also it is in a calm area too. In Istanbul, it can be difficult to stay away from the crow and noise.
One and the only downside is, like some other guests said, the shower. The water pressure is weak and the shower head is fixed.
Other than that, the apartment is perfect.