I've stayed at Sami's place for 2 nights. We had a great time there. His location is about 10-12 min away from the metro line (M2) which takes you to the most important things in Istanbul. His home is pretty clean although the cat some times leaves some mess behind :)) We didn't spent as much time as we wanted with him, but the little time that we had, was really good. He provided me some tips on where to go or what to visit/eat. Btw, the cat is really cute :)
Thanks for hosting us Sami!