I absolutely loved the first season of Boss so I was looking forward to the second season. For the most part, it didn't let me down. The only part I didn't like was Kimoto's "banishment." While they tried to replace her with two characters, it just wasn't the same. Granted, I would love to see Kurohara Rika become Kimoto's protege of sorts. That would be a pretty awesome spin-off.
My favorite part of the series is that it is a detective series but it keeps humor in their lives as well. It's not all stuffy or anything. I am really looking forward to news of a third season.