As with everything the eponymous creator does, this show is highly worth the watch. If you are familiar with the podcast Harmontown, you will finally be able to put faces to the voices behind the best segment of that podcast: the role-playing game.
Jeff Davis was already hilarious , but the addition of his facial expressions really does justice to his humor; Erin McGathy is a treat even if she and Dan are no longer married; and for anyone who has watched Rick and Morty or Community, Mr. Harmon surely needs no introduction.
The animation is engaging, the voice acting is stellar, and the story by Mr. Crittenden is thrilling, fast-paced and diverse enough to grip the viewer even while allowing for significant bits of improv from the cast and the excellent guest players.
The only reason I give a 9 instead of 10 is to reserve my 10s for the highest echelon that contains such shows as Game of Thrones, the aforementioned Rick and Morty, and Breaking Bad. In other words, this show is great, just not legendary.
Do yourself a favor, and watch it.