These days, it seems Professor Dhrymes only teaches the econometrics seminar, which seems to be his strength.
Given the previous reviews, I was expecting the worst when taking this class (which was required for me). However, I was very pleasantly surprised - it ended up being one of my best classes in the economics department.
The class is typically very small - usually around five people. He's a soft-spoken man, but has a good sense of humor once you get to know him, which happens quickly in a class of this size.
He's rather flexible and amenable when it comes to the final paper. In my case, the paper I proposed writing used techniques slightly different from the ones he taught in class (which is what we were supposed to use), but he gave me permission to write it anyway, because it was still closely related to what we had covered, and because he felt it was better to have us write on topics that we found interesting. He won't treat you like you're in kindergarten like certain other professors in the department do - if you've made it this far, you're an adult, and he'll give you the respect of one.
The material may be a bit dry if you're not a fan of math and statistics, but if you're considering taking an econometrics seminar, hopefully that should be what you're looking for. Prof. Drhymes does a very good job of making the techniques relevant to real-world examples, so if you were the type of person who was bored with Intro to Econometrics and Advanced Econometrics, this may be the class you've been waiting years to take.