We watched S1 and really enjoyed it. The hubs is pretty obsessed with post-apocalyptic events and storylines, so it was ALWAYS recorded. S1 had some extremely brilliant, highly competent people (engineers, medical professionals etc), and it did two things: (1) made it totally unrealistic -- when it's the apocalypse are you really going to find yourself with a doctor, an ER nurse, 2 or 3 engineers, a rocket scientist...?!!? No. BUT (2) these people made it really fun to watch bc they solved problems in ingenious ways and built crazy contraptions along the way. Flame throwers were involved, people, need I say more?!
It's pretty hard to suspend disbelief, though. We're always like, dude, just walk a few miles and you'll find a mcdonalds to get yourself a cheeseburger so you won't have to ration grains of rice anymore!