What a thoughtful gift. I agree with your husband that it looks fine. The person making the quilt is the one who notices the mistakes the most. Other people aren't interested in the mistakes...they just like what they see.
Think of it this way, if someone went to all of that trouble to make a gift for you, would you appreciate it or would you be critical because it wasn't "perfect".
(Besides, I haven't bought anything from the store that has been perfect....they make mistakes too.)