What does Google Hangouts do well? It's a perfect tool on ANDROID smartphones with perfect integration with GOOGLE apps. Calling rates are really cheap compared to other similar VOI solutions. PC version is also very easy to use.
What does Google Hangouts not do well? I still don't know how I can ad credit to my account if using only PC version or is it even possible to do it. More options regarding calls would be appreciated. More promotion from GOOGLE would make this app more appreciated globally, now it's looks as they are not sure what they want to do it with it.
What do you wish you had known about Google Hangouts before using? There are less problems than with some other solutions that I used before (VIBER).
Have you used a competitor to Google Hangouts? If so, how does it compare? Yes, SKYPE. It's a golden standard for fixed line calls.