I've watched all of the episodes and it almost jumped the shark for me in seasons 2 or 3 but I had to gut through it. It's total escape-ism for me. DW and I get to turn off reality for an hour and click on a different mind wave to try to figure out what's going on. Two things that were not noticable to me: roving guards (maybe on a couple of episodes) and I always wondered where would be a good place to put the sanitation pits, just from a community planner perspective.
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"Nothing in life is so exhilarating as to be shot at without result."-Churchill