Beautiful view of the Bosphorus from the living room. Easy access to transport - bus stop and ferry station both easy walks from the apartment. The Beşiktaş Çarşı is a hub of pubs and casual restaurants that are open late. The crowd skews young which means it's all pretty affordable.
Note that Emir's apartment is a steep walk from the main road so if you have accessibility issues, or don't want to climb a hill each time you return from a meal or sightseeing, skip this place. The less steep route is a bit of a detour and requires a walk through a deserted park, which isn't ideal.
Emir is always reachable and his parents were super helpful onsite.