"Good quality with a solid feel to it. Excellent features when compared to the mechanical locks. It can be easily set to open without a code, then reset to code access, great for when you are in and out of a room during the day. It can be set to 4, 5 or 6 code lengths. If you have several rooms with these locks fitted, you can give users their own code, which grants them access into different combinations of rooms or just one. The ability to have one time user codes is ideal for allowing the odd access. If you need to change the codes quickly or regularly this is the one you need. The instructions are good too."