I recently purchased the Smart Door Lock, and overall, I am quite impressed with its performance and features. This advanced door lock offers the convenience of keyless entry, multiple user access, and enhanced security..Design and Build QualityThe Smart Door Lock boasts a sleek and modern design that seamlessly blends with various door styles. Its robust build quality feels solid and durable, giving confidence in its ability to withstand daily use and potential tampering. The keypad is illuminated, making it easy to use even in low-light conditions.InstallationInstallation was straightforward and hassle-free. The lock came with a detailed instruction manual and all necessary hardware. I was able to fit it to my door without requiring professional assistance, although those less handy might prefer some help. The process took about 30-45 minutes.Features and FunctionalityFingerprint Recognition:One of the standout features is the fingerprint recognition system. Adding fingerprints is done through the companion app, which is intuitive and user-friendly. The app guides you through the process of adding and managing multiple users. I found the fingerprint scanner to be highly accurate and responsive, recognizing registered prints almost instantly.App Integration:The smart lock is integrated with a dedicated mobile app available for both iOS and Android. Through the app, you can add or remove fingerprints and monitor lock activity. The app also sends real-time notifications for any lock or unlock actions, enhancing security by keeping you informed of who is accessing your door.Battery Life:The lock requires batteries to operate. Make sure to insert new batteries with full battery life. Mine, although new, were purchased a couple years back and the app shows you how much life the battery got which is very convenient. Mine are not doing so well. Also, the lock will not lock if your batteries are almost at zero.Security Features:The lock includes several security features such as anti-peep PIN entry, where you can enter random digits before or after your actual PIN to prevent onlookers from guessing your code. The lock also has a built-in alarm that triggers if someone attempts to tamper with it or if the wrong fingerprint/PIN is entered multiple times.PerformanceIn daily use, the Smart Door Lock performs reliably. The fingerprint recognition is swift, and I have not encountered any issues with the app or the locking mechanism. The physical lock itself feels sturdy, and the motorized locking mechanism operates smoothly.