Fine, but I wish they'd stop breaking some of the core features in hangouts. Since fairly recently, non google users are unable to get into video hangouts via new-style (non /_/calendar/) google calendar created links. Uberconference integration doesn't consistently work. Screenshare (since the plugin was phased out) doesn't work in chromium/ubuntu, but does in firefox. I've reported all of these issues in the product forums, but haven't seen resolution on any of them.

I know google isn't "into QA", but for such a core product it's remarkably flaky.