Based on the search results, here's a summary of the reviews and information about Singer sewing machines:

Consumer Feedback:
The Singer Fashion Mate is reported to be easy to get up and running and produces consistent, quality stitches. However, some users have mentioned limited illumination from the LED light and occasional struggles with heavier materials

The Singer Heavy Duty 4452 is highlighted for its high sewing speed, variety of accessories, ease of use, and durability against heavyweight fabrics. It is recommended for projects like sewing jeans or quilting

The Singer Start 1304 is recommended for beginners due to its simple controls and light weight, making it suitable for sewing classes and easy learning

User Satisfaction:
Users have expressed satisfaction with the Singer Heavy Duty 4452, praising its high sewing speed, variety of accessories, and durability against heavyweight fabrics

The Singer Quantum Stylist 9960 has been positively reviewed for its versatility and durability, with users reporting that it has held up well to frequent use on a wide range of projects.

Expert Recommendations:
Experts recommend machines by Singer, among other brands, for their diverse capabilities and durability, with some machines being likened to the "Rolex of computerized machines"

In conclusion, Singer sewing machines have received mixed but generally positive feedback, with specific models like the Singer Heavy Duty 4452 and the Singer Start 1304 being recommended for their features and suitability for different user levels.