Yes, I watched the first one (though two are available). It's very good and picks up right after the movie. There are also references to Monsters University. I liked how it is showing the effect of switching to laugh power on thoes hired to be scarers. It affects their jobs and livelihood. It's interesting for sure.
I happened to see Monsters At Work today and it is really FUNNY and did you know that The Fonz from Happy Days voices the character Fritz?. But it's so cool to see the monsters back in action on this series. Hopefully this is a sign that more Monsters Inc. movies are on the way
I saw the second Monsters At Work episode two days ago and I can say this cartoon will be a GIANT hit and be one of Disney's best cartoons ever. I cannot wait for the third episode because Tylor is such a funny monster