The usual sporadic usage of Google now with voice controls, for me, comes from playing music and setting up alarms/reminders. I like waking up in the morning and going "Ok Google, play some music". If I had a more integrated system (right now I just have a Pixel C tablet that I use to listen to music, not the best) with Google Home and the appropriate stuff then I would probably use it more. I also get especially frustrated when I have to repeat my "Ok Google" trigger like 5-6 times before it catches on but I think that might be due to the poor reception + distance of my tablet which is a bit sloppy.