Watched the first half of the first episode last night. (I torrented it, which I don't feel guilty about because I didn't get to the "thou shalt not steal" thing yet.) I thought it was pretty good. Nice production values, good acting, adheres overall to Christian theology. If you were mad that it was grossly historically inaccurate, well, you might as well get upset over every bible ever printed.
Abraham comes across as a freaky-scary kind of zealot though, doesn't he? Seriously, if that dude lived in your neighborhood wouldn't he rustle your jimmies? Lot's wife is oddly sympathetic. "Are you going to believe this batshit nut?" her eyes seem to ask in every scene. I was kind of happy for her when she turned into salt. At least she didn't have to put up with all the bullshit anymore.
Kind of bummed that they glossed over Lot offering up his daughters for gang rape to protect the angel. But I can see how that life lesson might be a little confusing for the kiddies.
In the end, if you were among the faithful, you found in it exactly the stuff you've always read about (in a more lurid and entertaining presentation). If you were ex-Christian and just wanting to go down memory lane (me), it was pretty good nostalgia.
I'm most curious about those who have considered becoming Christian but haven't drunk the Kool Aid. Personally, I think things like the depiction of Abraham would scare a lot more people away than it'd attract. But that's just my bias.