It's really hard to say. If you don't know the couple, you don't know their style. If they don't like or have an appreciation for hand crafted items, they won't understand the value (a Walmart quilt is $35). It doesn't mean that they are bad people, they just have different tastes. Then there's the home dec aspect. Where will they use it? If it's a bed quilt, would they have to repaint to use it? If it's a throw, will it go with their couch? The only type of quilt I'd give to someone I didn't know well would be a picnic quilt (along with a picnic basket, cute gift). Make sure the card or quilt label is clear that you hand made it for them.