7 Days was horrible in uncountable ways.
Cardboard characters with the lead male and female generating the sexual tension of Ma and Pa Kettle.
Forgettable or even worse - irritating supporting characters.
Cheap special effects - come on this show has a Sci-Fi premise.
Even cheaper sets.
Stories that jumped the shark so many times that I felt waterlogged.
If you want good Sci-Fi there are plenty of better options. If you want good action, once again there are plenty of options.