Review Sites, One Level Down

Food, Apartments and pretty much everything else - reviews today work at level 1. You can find a lot of reviews for an apartment community - but if you are searching for reviews on a specific unit in an apartment community, you are generally out of luck. Same with restaurants - if you are looking for how good a restaurant is, you have tonnes of help. But try looking for how good a specific item on their menu is - and you are generally out of luck. And so on and so forth.

What we need are reviews, one level down. Why Not?