Coaching at a CC is bittersweet -- on one hand, you get to coach students who are smart and motivated by both personal experiences with injustice AND competitive drive. They don't expect you to do all of their work for them and they generally appreciate what you do. They aren't used to having people do things for them, nor are they used to winning just because they show up. They also are facing bigger challenges and time limitations than most debaters, so debate time is their recreation not something they do as a matter of course.
On the other hand, they go away. I can honestly say that I'm really going to miss D1/D2 and Rex when they move on. They are nice and good to one another -- when they aren't trying to break D2 :). They try hard and have great attitudes. They are fun to travel with and aren't quick to complain about anything. I'd love to see all three of them continue debating, although I'm pretty certain only D1 will do so.
Also, we don't really have seniors -- since our students move on, we don't have the closure that comes from having a debater for four years and who is finishing their debate career.