Dr.Tentzeris is a character. His fashion sense is about the only thing that makes me come to lecture. He reminds me of a Jolly Greek Santa who really knows his EMAG, likes to joke, and teach material really quickly. It would be better if he would take the time to pause and let material soak in during lecture, or to really stop and explain things. It feels like the skims through a lot of the material and just gives you pieces and equations. His homeworks and tests model previous semesters though, so old material helps you understand the class better.