What a fanstastic trip! The flat is lovely and Basma is just fantastic. Not only did I get a comfortable and friendly place to stay, Basma was able to give me all sorts of information that helped make my visit really affordable. The flat is about a half block from the main tramline and I had no trouble going anywhere I needed on public transportation. (But GoogleMaps lies about Istanbul, never trust it for walking directions!)
The other guests I met were wonderful, interesting people and when I left I felt like I was leaving a friend and a community. I cannot wait to come back. I promise not to put salt in the tea again!