We had a great time at Tansel's place.
His premises are extremely well located since it is a short distance from Istambul's main tourist attractions as the Blue Mosque and Sultanahmet Square, but on the other hand on a quiet residential area next to the sea, away from the city's noisy areas.
He was kind enough to wait for our late arrival, explaining how to make our way around by foot, providing bottles of water and even a pass for local transport with credit.
The flat was tidy and clean, with all the necessities provided.
It was a great value for the cost, and we would definitely recommend his place to any traveler.