The main advantage of this apartment is location - it's perfect. There is Carrefour Gurme in just 3-5 minutes walk with tons of good food. There is also great tea shop down the street. You can find good pizza, sushi and fruits around.
Istiklal Street is also very close, Galata Tower is in 15 minutes walk. Subway, tram Station are also not far away.
The apartment itself has very nice design and it's quiet outside. Heating works well - it was comfortable inside in December.
The only problem is the kitchen - it's tiny, not many utensils, definitely not suitable for long stay. But if you're not planning to cook, it's fine.