There always lingers some awkwardness and stiffness in the air, but he is doing an okay and entertaining enough job of it.
I also don't mind if a politicians employs some humor occasionally. Mostly, because I don't mind if a politician reveals himself to be human, but also because politics can be dry enough. What I would mind are prepared punch-lines, though or if it was done a lot. Politics are superficial enough as it is. No need to make it more like a highschool popularity contest by introducing comedy as a meaningful factor into political competition.
What I would hate is if a politician made sketches. For the same reason. Unless those sketches were very thoughtful and had something substantial to contribute, perhaps.
So yeah, I think it says a lout about the state of politics if a president does sketches on youtube. And none of it good. It made me smile, though!