Indonesia, I am less sure about. The country's challenges are as big as I thought and I didn't hear too many things that made me go "Wow" in terms of trying to deal with them. The country needs more of a sense of commercial purpose beyond commodities, and has to improve its infrastructure.
In Turkey, visits to white goods manufacturer Beko and Turkish Airlines, the world's fastest growing airline, definitely made me go "Wow", and in Nigeria, I was saying it all the time.