The installation process was straight forward and stress free. The app provides videos to accompany each step of the process; making installation a breeze. It was easy to link the app to the lock. The app was easy to navigate and set up all functions from users to remote lock access. The lock is safe, secure and reliable. There were only 2 dislikes we had: the thick interior side limits space to grab the actual door handle, and the exterior pad is hard to see in low light areas. Overall I would give this a 4.8 as the downsides are small in comparison to the usefulness, ease of use and reliable safety that this lock provides!