I suppose it depends on the size of your stitch. I use big stitch because it allows my arthritic hands to use a larger needle and a bit bulkier thread and about 5 stitches to the inch instead of the 9-12 stitches of regular heirloom/museum quality/fine handquilting.
I would use it on anything, and do not actually make what I would call "casual" or "primitive" quilts. It does seem to work particularly well on quilts made with reproduction fabrics -- thirties or mid-1800s -- maybe because the assumption is that they were "utility" quilts in that time period. We all know, though, that that wasn't necessarily true!
Jan in VA