The time and love that goes into making a quilt is priceless. A fellow quilter should, of all people, understand that. I would most definitely talk to her about it. You don't have to be confrontational, but be firm in expressing your disappointment and make sure she understands how you feel about the quilt. $300 is a lot of money and it should have been an absolutely perfect job. If she messed up, hey we all do, then she should have told you.