I've just made a quilted bag with linen fabrics. They are absolutely gorgeous. I don't think that wrinkling would be much of a problem once it's quilted, as the bag has no wrinkles. I'm not sure whether the fabrics were 100% linen or a cotton/linen blend (it was a kit) but they were amazing to work with!
My friend saw them and loved them so much she wanted to make a quilt with them.
I had a quick look on the site and they definitely look to be a good price! Since making the bag I have been searching for linen in the UK and it's ridiculously priced!