It takes a great idea and mashes it with teenage drama, angst and an different existential crisis in figuring out how to live in this version of their earth. All actors have done a decent job, yet no one stands out. An intriguing storyline gets massively hampered with a very average script.
Honestly, I look back at the show and find no memorable characters, or sub-plots, and it remains to be seen if they manage to salvage what was an interesting premises, with better scripts in season 2.
Overall, a 2.5/5.
Watch for decent production value and an intriguing premise.
Don't watch for a script that leaves you wanting and unmemorable character arcs.