We stayed at Muratcan's place for 5 nights. He has been very responsive and his friend helped us checking in, accommodating our varying arrival time in the Istanbul traffic.
Among the central location, interesting furniture, e-piano and giant beds, it is the spectacular view that defines this place! Unbeknownst the modesty of the pictures we came to see a panaromic view looking over the intersection of the Bosphorus, the Marmara Sea and the Golden Horn from the balcony and living room windows. You have the historical peninsula lying on the right with Topkapı, Hagia Sophia, the Princes' Islands in the middle and the Maiden Tower on the left. We were happy to work there during the days with this view and good WiFi. The place is normally a quiet residential area on the bedrooms' side, we were a bit unlucky with the construction noise on the living room side but that's to be expected anywhere in Istanbul and was temporary. Down the rainbow stairs from this place you're at Galataport, up the stairs you're at hip/cosy restaurants and cafes but got to get used to stairs if you're on foot in this area. If you're by car it can be complicated to find a place and park on the steep narrow streets, still doable. Overall it's a lovely place and hope stays this way so that we can come back :)