I think he fits the makeup of this team. He's a good player, elite defensively at 2nd base and constantly makes contact to move runners or to get on base. Would I rather have a guy with more power at 2nd? Yeah but I dont think Nico is a problem for the Cubs or anything. He's a guy where when he career with the Cubs is done, I will remember it fondly for his makeup, defense and contact approach.
As of now, we dont really have a replacement for him. In the long run, maybe Christian Hernandez or Shaw establish themselves there but he's our best option at the moment.