This is by far the best smart lock I've installed and/or operated. I've installed and operated both Kwikset and Schlage locks, and this one out performed them all. It paired instantly, worked wonderfully, and the battery life is incredible. I have these linked to a Vera home controller and it's aces.The only instance where it might get funky, which really isn't even Yale's fault, is if the door isn't perfectly aligned or you have to press the door by hand to compensate for any trim seal around the frame. That issue aside, it is quiet, super easy to use and program, and looks awesome. The bolt is actually tapered, so it can help make up for a little misalignment, but try to have a smooth action if you can. You'll thank yourself. I have 4 of these for my house and they were worth every penny to automate those locks.TIPS:1 - Always make sure you have an easy to access door into your house if you're going to go fully keyless. If these locks ever fail, the only way to unlock them would be to do so from the inside. If you have multiple ones of these that are easy to access, the likelyhood of all of them failing at the same time is PRETTY slim, but make sure you have a fallback plan in case that actually was to happen.2 - Make sure you "hand" these locks AFTER you install them. That's when the lock determines if your door is right handed, or left (the direction in which the bolt actually locks). It's a slight pain in the butt to rehand these locks, as I found out the hard way. The instructions are actually clearly lacking this information, so just follow them step-by-step and you'll be fine.