[nitrogen]

We could have stars for multiple axes, plus a "choose n-of-m" keyword selection, but I wonder if that would be too complicated for users.

Example:

    Service: 1-5
    Cleanliness: 1-5
    Concierge: 1-5
    Modernity: 1-5
    ....

    Choose three words to describe the hotel stay:
    _ modern
    _ rustic
    _ rude
    _ quaint
    _ clean
    ...

[ghaff]

There's a lot of evidence that minimizing dimensions--even to the point of getting rid of obviously relevant ones--generally works best. Though Zagat does have food, decor, service, and cost so it can work especially when you're focused on a single thing. It gets harder when you're rating different things that span different dimensions. Amazon, for example, obviously just has a star system and DVD reviews are this sorta annoying mix of reviews of the movie and reviews of the specific DVD product.