I machine quilt on either a Pfaff 1222E for baby quilts and a Viking Sapphire 875 for lap and twin size quilts. If I do a grid it will take me 3-4 days to quilt one. If I do an all over meander it'll take a couple of hours for the baby quilts and several days for bigger quilts. Sometimes its fun to use the decorative stitches for grid quilting and I often use a variegated thread and a 16/100 top stitch needle. I do quilting because its fun, not because it has to be perfect. The vast majority of my quilts are for charity.