Watch The First Episode of Disney's Ultimate Spider-Man Online
They showed two episodes with the first basically an intro/origin, and the second was Spidey joining up with SHIELD, partnering with Nova, Power Man, Iron Fist, and the White Tiger.
I found the first episode to be a bit better, as the second introduced things like the Spider-Man motorcycle and SHIELD web-shooters, which I thought were so-so.
It was cool seeing Agent Coulson appear, as well as an update on the Spider-Man mythos in addition to all the fun and humorous elements at play.
My seven year old thought it was "awesome" as well.