This one looks more like the Facebook Messenger for Desktop. Really.
Google released a new Hangouts app for Chrome today, which looks better and works better, provided you like chat heads. This is not an upgrade to the existing Hangouts app, but a new app altogether.
Now, do not jump into any conclusions about chat heads comparing it with your experience on the phone. I have disabled Facebook’s chat heads feature on my phone. I did not like it. However, when it is on my Chromebook where I have enough screen space to spare for chat heads and chat windows, this is a different experience, and I have started liking it.
Here is a video demo!
You can download and install it from here. Give it a try and let me know your thoughts!