Hmm, those tires might be good... if your commute is through grass fields and dirt. On pavement, knobby stuff will wear you (and itself) out faster than you'd expect.

That said, I did almost all of last year's touring and commuting on a set of Kenda Kwick 700x30 because they were cheap and I wanted to try the biggest tires I could on the Bianchi. I lived (obviously), but they were a lot nicer after the tread started to wear down.

- Scott