If I could just set my "Friends" circle to be the default function of the Home button (something I've wanted dating back to my first 5 minutes using the service) I would probably actually use Google+.
"Home" being "EVERYTHING" is just a disaster. I want to see what the people I actually personally care about are up to first and foremost, and then I want to browse around to what the rest of the Internet is doing. Instead, everything is shoved down my throat all the time.