I'm hesitant, frankly; the last series was fun but still not as clever as the books. I don't know anything about most of the people involved with this production but it seems to be a Dirk Gently show in title only, even more than the last one.
Either way, I'll give it the first couple episodes to see if it earns the name.
EDIT: Watched the first episode. Ironically, the worst part was probably the guy playing Dirk. Feels like it's trying to be wacky and crazy just for the sake of it, but that's not necessarily a bad thing. Also seems to imply that the books are more or less within its canon, which is more than the other series did, but doesn't have much bearing on anything.