Intriguing!! Pay close attention If you're looking for comparisons, this is kind of like themes/ideas from The Matrix, Interstellar, Sliding Doors, Inception, etc., so if you liked that type of film you'll probably enjoy this (I certainly did!).
It's an intriguing, and engaging series, well worth watching, if you like something 'out of the ordinary'. The acting is first rate, especially the boy who plays Isaac, he's amazing!!! Jessica Raine is always a pleasure to watch, of course. The story is interesting, you don't know at first what's going on, so it offers a few different options, you need to pay attention to catch the quick 'flashes' that make sense later. Hoping for Seasons 2 & 3 to be made, for sure!!