I am very pleased with the lens. Well made, good image quality, good (silent) autofocus. It's also nice that the Canon EF-M lenses are made of metal. The Canon could introduce in the EF-S lenses as well. Whether you need an ultra wide-angle lens, everyone must decide for themselves. For me it is the first lens of its kind and I am pleased with the added value of the options. Previously strong buy recommendation for the lens.