The apartment has a great location!
The Galata Tower is 3-5 minutes walk and the area around the tower is very noisy and crowded. But the apartment building is in a tiny alley, which is very quiet.
A coffe shop with an excellent specialty coffee is around the corner (30 seconds walk), three amazing restaurants are next to the coffee shop and I recommend trying all three: Galata Kitchen (home-style, international, very tasty), Smyrna Art-Gallery Cafe (peculiar mix of art-store and cafe with local dishes), Galata Lily Cafe (great serving style, local fares, try hummus and lamb).
From the apartment location, it's easy to explore Galata Area, Taksim square. Karakoy with it's nice and modern seafront promenade filled with restaurants is 5-10 minutes down the hill.
We walked to the main attractions like Hagia Sofia and Blue Mosque. It was a very nice 1-hour walk over the bridge and through the old Egyptian and Grand Bazaars.
The apartment's interior is the same as on the pictures. There are two bedrooms, each has a double-bed, a living room with a TV, which perfectly sleeps one person, a separate kitchen with all appliances you need and a dinining table in the hallway, which can easily accomodate six people.
We made the best choice when booked this apartment!