[nchafni]

Chui is also beneficial while you're away. If you're expecting to be occupied you can have Chui deliver messages for your. You don't require your visitor to have a certain kind of smartphone to work with your lock, and it can make your home more intelligent(ex: recognizing when you get back and automating certain tasks.)

[aroch]

Still requires having previously dropped the dough to get a smarklock. Given that Lokitron lets you remotely unlock/lock, it saves you the ~$200 this costs and only takes a simple SMS if the person doesn't have a smartphone

[nchafni]

yes, but lockitron doesn't tell you who's at your door nor does it allow you to communicate with them...