Mr. Mercedes is a certain sort of triumph, but it isn't going to be for everyone. It's a great character study, and you'll wish you could binge it, but you'll also want to fast-forward.
Wisdom of the Crowd is a solid effort that works its gimmick in a way that is potentially gripping, but it needs to make sure it's working the balance of characters.
Ten Days in the Valley is better than most entries in this odd genre, but that doesn't actually elevate the genre. It's largely screwy for the sake of being screwy and is meant to be viewed after a few glasses of wine.
Adam Scott and Craig Robinson both deserve better writing and there isn't enough in this pilot to believe that they're going to get it. It may transform into a solid show in a few episodes, but it doesn't seem the way to bet.