Alright, let's talk about the Keylynx Smart Lock D200. I've been using this for a few weeks now, and I have some thoughts—both good and not-so-good.

The Good Stuff: First off, installation was surprisingly smooth. If your door already has a deadbolt hole, this thing fits right in. Took me about an hour with a buddy helping (yes, you’ll want two people—trust me). The instructions are clear, with both pictures and written steps. No guesswork here!

The fingerprint scanner? *Chef’s kiss.* It’s fast and accurate, but pro tip: when adding your print, vary the angle each time. If you scan the same spot five times, it’ll only recognize that exact position. Learned that the hard way.

Love the auto-lock feature—no more paranoid double-checking if I locked the door. It secures itself after 5-99 seconds (you can adjust this in the app). And speaking of the app (Tuya), it’s intuitive. Adding/deleting users, setting temporary codes for guests, checking access logs—all super handy.

The Not-So-Good: The build feels a tad lightweight compared to premium brands like Schlage. The motor noise is noticeable—kinda sounds like plastic gears grinding. Not a dealbreaker, but it doesn’t scream “premium.” Also, auto-lock can be finicky if the bolt doesn’t align perfectly with the strike plate. A little friction? The lock might give up and leave you vulnerable.

Battery life claims seem optimistic (16 months on 4 AAs? Hmm.). I’ll believe it when I see it. And while remote access via Alexa is cool, you’ll need a separate gateway ($$).

Verdict: For the price? Solid pick. It’s sleek, feature-packed, and gets the job done. But if you want bulletproof durability or whisper-quiet operation, you might want to splurge on higher-end models. Still, for most homes? This lock’s a winner.