I understand what you might be going through...
I knew a lady (Kathy) who wasn't very happy with how her quilt had been quilted (the machine quilter just hadn't done what Kathy had in mind), It was a quilt she put in soooo very many hours in cross stitching and she really wanted to be proud of her work- the machine quilting that was done at first just made Kathy cry... so when she found out I could help her- she was thrilled. She brought it to me and I unpicked it all for her- and quilted it just like she wanted- it was VERY worth it for her, to unpick it and have it re-done- right!
So I say- if you are really unhappy with it- UN-PICK it! sure it might take you longer to get done, but if it means a little "elbow-grease" now and a big smile and two beautiful quilts later - I say un-pick it!
I would rather this than never finishing it and hiding it in the back of a closet-