Firat's place was perfect. The view is amazing, the terrace is huge, the building and the apartment seem brand new and very well maintained. The location was perfect too: next to all the cool coffee shops, bars, brunch places and restaurants, while at the same time being less than 1mn walk to the Bosphorus' banks, where many people go to relax on the grass.
I didn't meet Firat, but everything was simple, check-in was seamless, and cherry on the cake: I had to leave 4 days earlier than expected, he accepted with no discussion and gave me full refund for those days. Thanks again!