Ali's place is great, highly recommend! The view is amazing regardless of the time of day. The bed is comfortable, mattress on the softer side, which was perfect for me. Everything was clean, A/C unit worked effectively to cool the entire place, and location was close to a bunch of shops, Galata, Istiklal, bus, ferry, and subway access. One thing I wasn't expecting is that there is a mirror on back side of the island that faces the bed. Ali graciously helped arranging taxi's from the airport for me and made sure someone was there to open the apartment as soon as I arrived. Can't say enough about this penthouse, add to your list of great places in Beyoglu!