I absolutely love this Eufy FamiLock S3 Max. I have used other smart locks before, but this one immediately stood out and became a no-return purchase for me.The palm vein recognition is the real differentiator. You walk up, raise your palm, and the door unlocks. No keys. No codes. No phone. It just works. Once you experience it, it is hard to go back, especially when your hands are full. We have multiple users set up, including my wife and me, and it recognizes each of us quickly and consistently.I also love the built-in camera and doorbell. When someone rings the doorbell, there is a screen on the back of the lock so you can see who is outside without using a peephole. It feels thoughtful and very well designed.Being part of the Eufy ecosystem with the HomeBase makes everything seamless. The video quality is clear, the app is easy to use, and the overall system feels solid and secure.There are a lot of smart locks on the market, but the palm scan feature is what sold me. It is simple, fast, and genuinely useful in real life.