The ability to pre-heat my oven without standing in front of it. That's really the big win. But also to be able to tell if spouse or children left it on.
Rushing to get out the door, "Honey, did we turn off the stove?" Presumably you can then check with your phone.
I'd expect the network connection to go down and the oven not to turn on at least as often as 10 minute makes an operable difference.