What "all of a sudden"? I ditched Flash: The Fastest Man Alive 2 issues in, the moment I realized the writers didn't have a f***ing clue what they were doing, and according to everyone who kept reading, it was the right call. Guggenheim improved it so I jumped back on, and then Waid came back on with Wally and, unlike the majority, I actually didn't think Waid's run was bad. It didn't reach the heights of his earlier run on the Flash, but it wasn't a horrible story.
I'm thinking about dropping Flash: Rebirth, weighing the fact that it's a huge game-changer for the Flash vs. the fact that the first issue was mediocre as hell. I haven't come to a decision on that one yet.