Assuming you've seen the first season, you know it ends on a very tragic note. This in itself isn't bad, but the second season undoes it all with very little explanation. Really, it's a bunch of deus ex machina bullshit. If you can get over most of the cast being zombie characters though, the rest of the season is good overall. Many other reviews give detailed pros/cons so I'll just skip to the TL;DR: If you enjoyed the first season, and can overlook a couple glaring flaws, this is a solid and satisfying follow up to the first season, and i would recommend you give ita try.