So far I am really enjoying this show. The idea is relatively unique; it rather reminds me of something you might have seen on Twilight Zone years ago.
So far Apple TV has come up with some of the most original programs on TV today. Of course, not all have been winners, but most of them are creative and binge-worthy. There is a reason Apple has received so many Emmy nominations the past few years. They take chances instead of churning out the same old programming.
It might seem a bit slow in the beginning, but it is worth hanging in there, as there are some great characters and unexpected storylines. Of course, throughout, you are wondering, where did this machine come from and what is its purpose? Is that purpose for good or evil?
All that said, I have to say that even though I know it is a fantasy/sci-fi show, I really had a problem every time a customer typed in his/her Social Security number without hesitation. Now THAT is truly fantasy!
As other reviewers have mentioned, this really is not a comedy, so don't expect any great laughs. Just go with the flow and see where it takes you. It probably won't appeal to everyone, but it works for me.