The install was straight-forward. The locking mechanism is simple to lock and undo.  They have a solid build and elegant look.  The turn of the handle only requires about 45 degrees to open compared to our Schlage which is almost 90 degrees.  My only concern would be for little kids to be able to twist the handle.  My eight-year old girl can barely do it.  All-in-all I love these door handles.  I’m so glad I got four.  And they came within a week to Vancouver island!