Tony's definitely different in the seminar and than in lecture. It's true that you get to know him better in a smaller setting, and he's a really cool guy. The class had a ton of reading compared to the other seminars but it was totally worth it because we had a really dynamic class with good discussions which allowed us to learn a lot about Darwin. As for the first two quarters in the cluster, he's a pretty good lecturer. The only thing that bothers me is that he tends to stare at the ground while he talks, which is distracting. And it's really obvious how hard he works for the class organizing everything and really trying to get to know the students. He can be a harsh grader when it comes to essays, but that's not a real problem if you go to him for extra help. I would definitely recommend the Cosmos cluster, it really defined my freshman year.