Location & terrace - two things that persuaded us, a group of 5, to rent Akif's place. We were not disappointed - the flat is close to everything: fishmarket, cafes and restaurants, pubs & clubs, public transport, nice shops, you name it. And still, it is rather quiet for such a central location (only 1 bedroom opens to a street; others face some kind of inner yard, I guess). Terrace is nice, especially when you have it to yourself (we had all our late breakfasts on it and it was not crowded in the mornings).
Flat is spacious enough; kitchen is equiped with all essential stuff one needs for basic cooking/preparing light meals.
All in all, I highly recommend this place; price/quality ratio is more than satisfactory. I would not mind staying in Akif's place next time I am in Istanbul with a bunch of friends.