It just doesn't work for me. Compare that to:

http://twitter.github.com/bootstrap/#forms

there is a big difference.

To each their own. It's largely a matter of opinion and getting forms right is tricky, but from an accessibility standpoint, I much prefer Zurb's forms... much better contrast and easier to read.

I agree that for forms - bootstrap has it much nicer. It wouldn't be hard to transplant one into the other depending on your needs (responsive vs forms)