The storyline had potential, but it was unnecessarily dragged on, had poor scriptwriting, and the ending too was a massive let down. Some moments in the show were utterly stupid and the series had so many loopholes that it was infuriating to watch! When one thinks of a sci fi horror, something like Black Mirror comes to mind - that was written intelligently and executed flawlessly. And intellect was something that was missing from the script entirely, as if no second thought was given to some parts of the show which made it so weak.
The only good thing I'd say was that some of the young actors were good and have great potential. Unfortunately they were made to act in a really bad show.