I can attest to Howards Restore a Finish being good stuff. I haven't restored any sewing machine tables, but I've used it on my antique tables and the cabinets in my kitchen. My house was custom built in the early 80's with some really nice custom cabinets. The house had been a rental for a while and the cabinets took some abuse. I used Howard's extensively on them and they came out really nice. Its easy to use and not hard to match. Good luck and be sure and post pics as you go. We love pics!