Went here first time last Thurs night. Didnt have reservations but got seats at high table with bar stools. It didnt matter one bit to the fantastic view (see link below).
The service was friendly. Food quality was not bad; prices were ok, maybe even a little below what I had expected for the venue. Decent selection of starters, salads, and main courses. A lot of wine was drunk. Price for 2 people with a LOT of wine, one starter, a dinner-sized salad, and a main course was 90 YTL plus tip.
I will be going back for the view and drinks, if nothing else. The only thing that spoiled the evening was the person I had taken there -- but that problem has been permanently sorted.
Yenicarsi Caddesi 52, Galatasaray, 0212 292 8947
Directions: From Taksim Square on Istiklal take a left just after Galatasaray Lyceum. Walk 10 meters or so and there will be a sign a building on your right for LITERA. Take the lift to the rooftop.
http://www.literacafe.com/