Hooray, I finally finished it! This was five years in the making, due to neglect, not difficulty.
It's a giant granny square made with Lion Brand Wool Ease yarn, which was nice to work with. There were so many ends to weave in (endless!), but I sat down with it Sunday night in front of Downton Abbey and got it done. Perfect way to spend the end of winter vacation!
I like how it looks on the white couch, but it clashes horribly with the rug in that room, so this will live in our family room, where the couch and carpeting are brown. We could use a burst of color in that room.