I love how fluid and easy Hangouts is to use! We can chat while in meetings - grabbing quick information and updates without the burden of an email. We can communicate with students - especially international students who might not have a functioning cell phone. Hangouts allows them to have a mobile communication network. We can video chat with incoming students - getting to know them and introduce them to the Google Suite before they get to campus. We can also message any of our colleagues - so easy!
I honestly, the one point of disappointment is the fact that you can't embed and send GIFs in the chat windows. I seems petty, but I love expressing my feelings with a short, looped, moving image. Hangouts is missing that opportunity!
We have discovered many ways to communicate with each other, with our students, and with incoming students!