Does Agent Rossi grow on you eventually?

Currently on my first watch through and almost one with season 3 and honestly... Rossi just doesn't have the same presence as Gideon did. I know why Mandy Patinken left, but it's such a shame because he was really good and Rossi just falls a bit flat for me. So I wanted to know if he eventually grows on you over the seasons? What are y'all's opinions of him with the context of the entire series?