0.5/1 star means that it's so bad that watching might actually kill you, please spare yourself.
2/2.5 stars means that I think it was a waste of time to watch.
3/3.5 stars means that I thought it was okay. watch if y want, y might like it.
4/4.5 stars means I think it was a good show.
5 stars means I think it's an awesome show and I recommend watching it.