How Well is Duarte Doing?

Hey guys, I just was curious what the general sentiment of how Mattias Duarte is doing bringing cohesion and coherency to the overall Android experience. Personally, I think they are making great progress but I really want to see more. Everything new I see I like even more.

I mean I'd seriously like to see a UI overhaul for Maps and even Calendar. Surely there are several other apps that need work. Do you think Duarte is making enough progress fast enough?