I liked it, too. Some people thought it was hokey, how the "agents" (angels?) had a hierarchy, and they had powers but were limited in how they use them, but when we watched it, we all just accepted that that was how it was, and rolled with it from there. I also liked how we never really knew what they were, demigods, angels in human form, whatever, or if it even mattered. There was enough implied that one could find parallels to religious dogma, or you could just roll with it.