I’ve been relying on Skype as my primary phone at my Wayland MA office for the last 2 years. It has been really good in general. Then again, I’ve got super big pipes from Verizon FiOS (70mbs down/35mbs up).
Recently, I’ve had clients who prefer to use Google Hangouts. On my Mac, it seems harder to get everyone assembled using the Hangout UX. Also, the audio degrades for me after about 30 minutes. If I disconnect and reconnect, then I’m fine again.
It is a pretty interesting story to see how Google has progressed to invade this space. Check out the excellent chronology by the Verge here.