When we got all done we plugged the machine in and tested it out. We had to adjust the tension just a little and we had perfect stitches. Then my mom said it ran as good as when it was new. She was so amazed. She has a copy of her original owner's manual - the first 15 pages and the last 15 pages are missing. She has one pressure foot and a button hole maker - that's all she's ever had. Mom was a home ec major in college. She used an old hand crank chain stitch machine for all her classes. She said the teachers laughed at her but the stitches held so they got over it. This machine was a vast improvement for her. You name it this machine has probably sewn it.