Wow! My sewing machine is humming so smoothly. It was recalibrated, oiled, and any friction points were polished smooth. The turn around time was quick and the service was exceptional. As a bonus, I learned more about the finer points of my machine in one day than in my 18+ years of ownership. Additionally, I learned nuances about how and why to use different threads, products, and techniques. Simon was a wealth of information. I even took notes! I’ll definitely be a returning customer.