I design most of my own quilts, and almost never manage to use someone else's pattern without "tweaking" it to make it work for my needs on the occasions when I buy one from someone else. That having been said, it isn't always simple to just "add another row of blocks" to get a rectangular quilt out of one designed to be square, and that can be TOTALLY frustrating! Sometimes adding another row can give you a quilt that's 140" long, by the time you add your sashings and planned borders, etc! Most of us don't want one quite that much longer. LOL! And those people who don't have the "designer gene" don't always know how to scale down the size of the blocks to compensate... well, that conversation could ramble on and on. Sometimes I simply use the main pattern like a medallion for the bed top and plan my complimenary borders and pillow cover to make it look like that was my intention all along. You can get some stunning results that way without giving up on a pattern that refuses to give up its square identity. But it's a lot more work, and the short answer is no, I don't really like square quilt patterns. And pillow shams won't add to the quilt at the foot of the bed, so that's not a real good solution to a quilt that's too short for a rectangular bed, unless it's an all-over block pattern!