Google Now is amazing. I'm just so stuck in my old manual ways I find it difficult to vocally tell it what I want to do.
True that. Google Now is equally important to me on my phone.
In my car, I have an LG G3 as my dedicated nav device. I travel to Hartees (from Edenvale) 3 times a week and found it handy to use Waze to give me traffic info. With the recent update to G/Maps, my preference changed to that instead of Waze.
Now typically, it was phone on, open waze, select Home/Work/School. Now I don't touch my phone. OK Google, Take me to Home/Work/Shangri-La Academy (ye - it gets that right), and off I go. I don't even have to switch the screen on.
Then reminders. I often think of stuff that I need to do on the weekend, when I get home or to the office, etc... Then by the time I arrive, I have forgotten again. With OK Google, I simply say OK Google, set a reminder for when I get home/to work/this Saturday, tonight, whatever, and dictate my reminder. The phone is hooked up to car Wifi and my personal Google account, so I get the reminders on my phone whenever they are supposed to pop up.
If I get stuck in traffic or something, and need to let someone know i am running late : OK Google, send a whatsapp message to blah. Dictate message, send... Done. You can't have a conversation this way as it requires you reading the phone in the car which is a no no, but it's great for sending the once off messages.
And of course, you can make calls too.
The above is used basically daily. Google searches and stuff I don't do so much. From what you can see above, I mainly use it in the car and spend about 2 hours a day 3 times a week in the car, so it's extremely handy. I literally don't touch my phone while driving.