I heard Dumitru Duduman speak in Denver sometime in the late 80's, I had heard of him and had to travel quite a few miles to hear him because I wanted to hear him for myself, and can say that he is a very strong Christian and seems like a very good and sincere man that does not glorify his himself above God when he speaks.  When he speaks he speaks with power and talks only of God and what he has been given from him.