It's really good... Just be aware that, if you're watching them in order, it doesn't really hit its stride until Danny Devito joins the cast, or maybe a season after.
It's still good before that, but I wouldn't judge the show based on those episodes.
He's also in Mythic Quest; some of the same writers as iasip, but based in an MMORPG game studio. Him and Ryan Reynolds also bought a soccer team, Welcome to Wrexham is an entertaining documentary about that.