Very nice place indeed. The host (Ersan) was super friendly and caring - to the extent I've never seen before and also spoke very good Russian :) The apartment itself is totally worth the money. Comfy, spacious and reasonably furnished. Has everything you could need from washing machine to dish washer. Small welcoming compliments from the host (like a bottle of cold water and a chocolate) added to already very good impression.

Location - although not very far from subway (5-7min to Osmanbey) we used to walk almost everywhere. Close to Kabatas port (boats to Prince Islands / Bosphour tours) and tram station (you can go to Sultanahmet directly without using the subway) - 15-20 min walk down the hill via a very nice park. A lot of shops (main shopping area is very-very close) and cafes around (I'd recommend the closest one to Pepita where they serve tasty kofte at reasonable prices).

All in all, despite I love trying out different hotels / apartments, I'd seriously consider going back to Pepita once I'm back to Istanbul.