Whle I love Sci-Fi, it is difficult to find a show that has good characterzation, sophistocated story lines, killer special effects and be able to consistantly produce that for FIVE YEARS.
I am in heaven right now binge watching it day and night.Also very happy that there will be a season six!
PS I read somewhere that it is a family show and that may be true for older children. I would not let my younger kids watch as cursing is full throttle. If you are concerned about sex scenes, there are a few of those as well as abundent bloody fighting. But if you are over 14 or so... you will love it!