I once used some check that was printed on and it was a bit "off" but in the scheme of things it came out fine. I cut following the lines and used it as sashing and by the time it was quilted it didn't seem to matter that the sashing was a bit off grain.
That said make sure it is not off by a lot! Cut a small piece or strip and look at it good. Might even wash it and see how it hangs when washed and dryed. :-D