Stone Espresso Totalitarian Stout

Stone Espresso Totalitarian Stout is a wonderful Russian Imperial Stout. It is BIG, with loads of hidden alcohol and a nice dose of coffee flavor. The coffee is a perfect balance to the sweet beer and is not too much. I had a glass at Postbellum on Happy Hour. It was too cold and I had to drink it too fast to really appreciate the beer. I need another try to figure out whether the rating is 4 glasses, 5 glasses, or even 6 glasses. 

Rating = 5 glasses.