I have made 3 jackets our of quilts.

I ended up with an "in process" quilt/throw my MIL started...the top isn't bad since it's made from various patterned squares in good cotton fabrics but the back was a cheesy color and fabric content, she used a poly batting, and the machine quilting was abominable so I picked all the quilting apart to remove the back and batting (which took hours!) and I'm left with a decent top that I plan to put back together with cotton batting and a nice fabric on the back.