Incredibly hard marker! A great teacher though that is more concerned about the student getting the what they are learning more than anything else.
He is nice and really helps you when your stuck, but he can be quite forgetfull. Always remember to keep a backup for your work incase he loses it (again!).
Fair with his marking, he takes a lot of time helping with the students, and that is one of the bad things...rare that he would get to you on his help list.