I stayed In Utku’s house for few days, and I really appreciate how helpful he was with me, also his kind partner Selma who used to invite me for tea in the evening’s with their cute cat Chanel around us.
The house location is in the middle of Beşiktaş/ akaretler, there are many good restaurants and coffees around, It’s easy to reach and very good located. I recommend you to stay here if you wanna discover Istanbul.