I use Alexa SO MUCH for a lot around the house. Having it in my car has been a bit of a game changer. It's extremely convenient having one of these if you've already incorporated one into your home.
When I have to leave the kids in the car while I run into the store for something they end up playing games with Alexa while they wait. I use it for news, music, controlling my home, checking weather, random questions, adding items to my shopping list, as well as games. The Viva is a great little device. I'm sure the Bolt is going to be just as awesome and handy to have on the go!