I have a REAL hard time getting behind in-home physical-access-control tech going app (and the required wifi + smartphone that go with it).
PACs in the office? Totally. That's exactly the kind of centrally controlled security system that could take advantage of the benefits of that model.
In-home? Not so much. You're in essence linking to the (ex.) Shlage PACs system. In theory, that could be even more secure than your office. However...
Once you've centralized to that degree, it becomes a worth-while target for hackers. Both to hack the central PACs system, and for malware once they hose a system on the same WiFi network. Mobile malware will start looking for those apps and sucking your 'keys'.
Then there is the physical layer. In an office context, you have security keeping everything up on firmware. In home, you don't always (it'll have to be auto-updates, with all the risk that brings)
And as with all physical devices attached to software, the actual hardware will need to be replaced more often than Ye Olde Bumpkey-proof Deadbolte. That leads to resentment.
It also means handing your keys over to the new owners when you sell is a very different thing than passing over a key-ring with 9 keys on it. Forget that handoff, and the new owners will have to rip everything out completely and buy new.
Which you actually want. Because if you can certify new devices easy, you can guarantee that griefers are going to find ways to lock you out of your own home through that channel.
