Yes, I have quilted 2 kings and 1 queen on my Bernina. The 2 kings were done mainly with stitch in the stitch, going diagonally corner to corner. I am pretty new to quilting, but I beleive the biggest challenge is preparing the quilt sandwich on the larger quilts. If all the fabric and batting is pulled tight and pinned or spray basted well, the quilting process isn't that difficult. I do not roll it up, but fluff and stuff it through the machine opening.