I like the Nestov charcter too. He is a bit over the top right now, but I think he can add lots of fun moments to the show. He was a bit to "Martin"-ish for me (IMHO) at first, but I think it's still a good character. I just hope they don't relegate him to side-kick status. But I'm all for any body helping Cole to "get his freak on"
There's lots that can be done with Nestov, and the morphing (since his race are chameleon-like) cool.