Man, I just watched those two live videos and I was really pleasantly surprised by how good he was at the whole frontman thing. I never really felt awkward (which is a problem sometimes with longer introductions like that), he was good humored, and really kept the energy up for such a quiet and small show.
Also, those two have some incredible chemistry (both musically and in terms of personality). It's like watching a movie where the lead actors are best buds in real life and there's just so much energy in their acting, if that makes sense. They just seem to genuinely enjoy working together every time I see them (and it shows in the music lol).