Nobody speaks English, only one employee speaks a little bit of Arabic (which is very common language in the city), only three service windows with a huge number of customers. A waiting period of hour and a half is very normal at this branch.
The most stupid airport I've ever visited, it's located deep in the Asian side of Istanbul, sometimes, it takes you 40 minutes to get there, today it took me about 100 minutes to get there because of the HIGHWAY traffic !!!!! HIGHWAY TRAFFIC !!!! WTF !!!! I missed my flight !!