I just love this - and I love how natural Obama is with these people. I love all the details about how he spends his days, too.
The other thing is, watching the West Wing, you get the idea that the senior White House staff are never out of the President's bedroom, bringing him news all night long. It's surprising that that hasn't happened since the Fukushima tsunami in March.
Obama sometimes gets a reputation for being a bit aloof, but he comes over as warm and open in this.