I used these knobs to replace the ugly brass knobs that came with the house, These are easy to install because they do not have extra parts that need to be installed that some other knobs have. They are quite sturdy and the locks engage smoothly. I liked them so much I went back and bought enough to finish replacing all of the ugly brass doorknobs, The glass/Nickel combination is a nice mix of vintage and modern.
Product is very well built, would seem to cost more than it does. Would definitely recommend. Looks stunning when applied to six panel doors.