I go to Turkey regularly and I always had a very good bandwidth on 4g, even in the middle of nowhere in Anatolia. The network is much, much better than here in France. I guess the geography of Turkey helps a lot there since they usually always have a good vantage point to put antenna.

I don't know why people in this thread seem to think that Turkey is a poor developing country. It's not. Even with the recent political issues and the economical crisis, it is much better than a lot of country in Europe and in the EU.