Umut is a very hospitable host, answers any requests! I had problems with the check-in, he answered in the middle of the night and helped me. I checked in 6 hours late, he was worried and asked where I was. He made me a coffee and Turkish tea. The apartment is clean, he rents out two rooms out of three, plus you can cook in the shared kitchen.. I recommend him to everyone!!!
Umut works at Istanbul airport, can help if you have any questions, always in touch.