For books/ mangas / dramas:
0- waste of my time
1- point for trying
2- nothing special but it had its good moments
3- it was okay, but was missing major points
4- I liked it/it was enjoyable
5- I loved it but there's something missing...
6- simply amazing/my all time favorite/ I WANT MORE!
For people:
0- Is this a joke?
1- pass
2- decent but no
3- they have their good points, I suppose...
4- gorgeous hair / eyes / smile
5- sexy
6- I love you, I love you / I want you, I want you / YUMMMY.