Ok, so we binged watched this series over the last weekend. While the show started pretty good and got our attention (hence we watched it), our conclusion is that the characters in this show are the stupidest in the history of adventure, mystery, thriller, ever written! Without giving away too much, it is pretty evident that they found the magical keys but really have no clue how to use them to their advantage. You sit there and wonder what the writers were thinking or if there was any critical review of the plot before the show was made.
So overall, pretty meh in the end! The plot is below average and is nowhere close to stranger things, american horror story or lost :(