I don't get why this show was critically flakked this hard. The whole story is to show off one concept, and that concept and its execution was good enough that you can't rewatch the first half of the show in the same way after knowing about it. The rest of the components that make up the show are generic run-off-the-mill, but still done with decent quality.
If you have heard about this show and wondering why some people like it, do watch without worries.