The Kwikset 910 Signature Series smart locks are basically traditional push-button combination locks with some Internet connectivity added. If you have a Z-Wave smart home controller, you can lock and unlock the door remotely, which could be useful if you have workmen who need to get into your house to repair your appliances or guests showing up unexpectedly while you're still at the office. You can also check to see if you remembered to lock the door when you left the house, which should be a relief for more than a few homeowners. Otherwise, it works with standard PIN codes that can be typed on its five button keypad. (Kwikset claims that these five buttons, each of which has two numbers on it, can be used to create PIN codes with ten different digits in them, though they don't explain how the buttons know which digit you're using when you press them.)
Kwikset says that you can install the 910 series locks in a few minutes with just a screwdriver, but there's a lot of screwing involved, so a bit of patience may be required. They also claim that the locks can't be picked using conventional methods and have a video on YouTube where a group of locksmiths attest to its security, but be warned that there's another locksmith on YouTube who claims he can teach you to pick one in ten seconds using a special tool, so take Kwikset's claims with a grain of salt. In addition to the combination lock, there's a conventional key locking system in case you forget your combination, but that's probably where the pickability comes in.
If you'd prefer a Bluetooth lock that simply opens when it senses an iPhone in your pocket, look at Kwikset's Kevo, which also allows you to open it with a key instead. And if you don't want to replace your entire lock, the August ASL-02 will fit over your existing deadbolt and will also unlock when it senses your iPhone. Or if you'd prefer a modern, touchscreen combination lock that will use an optional (and extra-cost) key fob, try the Yale Real Living YRL220.
Door is unlocked for me when I get out of my car. And I can check to see if the door is still locked from anywhere with internet access.
The problem lies with the sounds. The motor on this thing is way too loud.
They connected seamlessly with our z wave alarm system hub. It works very well, and looks great.