Neat idea, especially if you only need one or two sheets of the stuff. Any more and you're probably better off heading to an office supply store (if only to save on costly printer ink).
If you have a laser printer it is probably cheaper to print, or use your schools printer for hw, I remember doing that for isometric homework assignments because the paper was too expensive.
I don't even feel like visiting that page ever again. It's SO full of ads to the point of chocking. I would rather buy a bunch of graph sheets from my local store.
Well, the first 4 links on the page are to music related topics - Royalty-Free Music, Music FAQ, Music Licenses, Scoring Services - so I just sort of assumed.
Unless of course it's not your page .. : /
Anyway, I later noticed it does have staff paper, so my comment was useless and wrong in not one, but two, ways. Cool huh.