Prices:
$: <10
$$: 10-15
$$$: 15-20
$$$$: >20
(prices are for one entree, no appetizers or drinks)

About my ratings:

0-4	Awful-to-bad - I definitely will not return!
5-6	So-So - I probably won't be back unless they're close by and/or super-cheap
7	Good - I wouldn't go three cities out of my way to try it, but if it's quasi-local, it's worth checking out
8-9	Very good - I would eat here any time the opportunity presented itself
10	Perfection!

My opinions are mainly based on the quality of the food, and the appropriateness of the service and decor to the venue. A greasy spoon with funky, crooked decor, beat up wooden furniture, and gruff service can score just as highly (or moreso!) as a fancy French joint with swank ambience and fawning service (provided of course, that the food is great in both cases!). I don't make too much effort to be imparital, and tend to have an affinity for those little neighborhood joints that keep you coming back (eg. Firefly, New Kapadokia, Vik's Chaat), over the "destination"-style restaurants, which I can't afford to eat at very often anyhow!