Duru Barbak
Google
I got an iced american in medium size for 3,2€. Price and portion is very good. Plus the coffee tastes nice and I guess the best part is the location which is just at the Place de la Bastille.
For the info: they said that in small iced americano there are 2 espresso shots, in M there are 3 and in L there are 4 shots.