A guide to the unconventional ratings in this blog:

Mind blowing finger licking good - 10/10 - very very rare
Awesome, the best of breed, almost as good as it gets - 9/10 - for example, given to chilli chicken (the dark colored dry one with MSG available in India)
Great, very good - 8/10
Good - 7/10
Nice - 6/10

Would go back to the restaurant willingly (as opposed to because its near, or going with friends, or have no choice) for ratings 6/10 and above.
5/10 and below is not worth the time and calories.

Average - 5/10
Below average - 4/10
Bad - 3/10
What was the cook thinking - 2/10
!@#$%^ - 1/10