Though this show is one of few that are based on time travelling and it's use on this show is also awesome. Yet there is nothing good in it as the story in every episode seems to be nothing but juat a time travel from various characters between past, present and future with a gap of 33 years but the story in this show doesn't have much capability. I guess people are just liking the show because it has a complexity of characters which is giving the audience an excitement of rembering the same character in different time. That's it.
I wish Nolan would have created it, he would have given it a good script apart from time travel part which is only the good thing about this show. Ofcourse Nolan is awesome at that as well.