I only watched a little.
I didn't really hate the first season, which surprised me quite a bit. But all I saw of this was needless, random romance between Gwen and what's his face. And what kind of logic is "the watch changes with the user's age"? Way to slap that in there at the last second without thinking it through.
That was enough for me to tell I'd be better off not watching it. And I won't.