Practically useless. Devices are always disconnected unless you go to them and manually power them on or wake them from sleep. Computers have had remote wake-up technology since 1997 but apparently that's too just much to handle. Devices are notoriously hard to connect to the app. It is really only good for 3 things: registering a product, "smart" diagnosing (as long as that is actually helpful to you), and helping LG mine your personal data to sell to God know who.