This was our first time in Istanbul, so we had no exact ideas about the best parts of the city for an apartment. However, as we traveled as a family, we had only two conditions:
1- Proximity to the public transportation system and shops,
2- Enough room for a family of 4 adults with all the necessary amenities.
Well, let me just say that Esra's apartment was perfect for us. For a start, it is literally one minute away from the Tram 4 line, which meant that getting to 90% of Istanbul's landmarks took from 30 to 60 minutes. You'll of course need to change lines to the T1 or a Metro but that is so easy. But if you prefer taking the bus, well you can literally see it from the balcony.
For everyday shopping, the location is amazing. Within a 3-minute walking radius, you can find 2 bakeries, 5 general stores, 3 local fast food joints, a locksmith, 4 ATMs, a pharmacy, some clothing stores, etc... The area is also not very noisy at night, compared to places like Taksim for instance. Once in a while, you'll get that one car with loud music.
Now, let's get to the apartment. For a family of four, there's nothing you'll need that you wouldn't find in the apartment. From clean sheets to towels, to a washing machine (+the possibility to air-dry your clothes), to a shower with instant running hot water for everybody, an electric kettle, internet, etc... Everything you'll need.
And last but not least, Esra is always there to help with anything. Just send a message, and enjoy your stay.