We don’t recommend it!
Indeed, Isik was kind, friendly and gave us useful and complete information; including a borrowed Istambul card for public transportation system.
But...
Accurecy: Zero!
The place was located in a central area but in a crowed and unpleasant street.
The second bed wasn’t a sofa bed; instead ,was a dirty and very very very uncomfortable sofa.
Currently the apartment is totally different to pics: spoiled surfaces, dirty walls and cealing. The shower had a spill so we must clean the floor after each shower.
One night was impossible to sleep because a very noisy neighbors.
We consider this apartment just for two people.
Almost four floor by narrowed stairs.