Communication: communication with Julie or her manager Faruk is very efficient. The two are very helpful and polite.
Location: in a quiet street and 5 minutes to main touristy road in Taksim. Lots of restaurants or fast food places around and close to main road for taxis and buses. There is a cafe downstairs though so a lot of older men hang around there when not inside. Can be slightly uncomfortable for women.
Apartment: nice looking apartment, spacious, quiet (windows block out most noise). We found the lounge room to be not so private as the curtains are a bit see through so we didn't hang out there as we would've liked to. Also, the staircase is windy and narrow and doesn't light up until you're halfway up or down them.
Overall, attractive apartment, close to everything and hosted by decent and helpful people.