I wouldn’t say it has contributed to my quality of life or anything, its more of a fascinating agent to play around with. In terms of social acceptance it has nailed it, that is what makes it so fun to use together.
It could probably become useful if I connected my email, calendar, contacts, a browser and exposed devices/services at home to it. But I am too afraid of doing that to be honest.
Remember, it wakes up every half an hour to see if it has any chores. My fear is it would do something stupid that would affect someone else during the night when I’m asleep.