Arrived at a crazy time 2am and Elif still opened up for me - then I lost my keys and this was no problem - She also gave me loads of good hints at where to go and eat/drink. Apartment is a bit of a hike up a hill - but this is Istanbul and you will get no different anywhere unless you pay a lot of money. However within walking distance are some very cool places to eat and drink - I spent most of my time at night up near the apartment - supermarkets within 2 mins walk and a taxi rank - handy for the airport trip - also if you use one of the local taxis it is super cheap - about £10 cheaper !