Just two days into using Google+ and I'm really liking it. Not prepared to dive into an analysis as 48 hours does not an opinion make. Let's just say, it's been fun thus far.
One of the main reasons I've taken to it, unlike other upstarts, is how familiar it feels. Google+ combines the best of what I like about Twitter and Facebook, with some delightful twists and the potential for great integration. A few early thoughts on what I'm digging. More to follow as I get into it.
Following a conversation on Twitter is a chore, and heaven forbid multiple people are chiming in. Google+'s threaded conversations are very Facebook-like.
Loose Knit Friends
Google+ doesn't require people to mutually 'Friend' each other. I can follow people who I think are interesting, without them having to approve me doing so. Very much like Twitter; unlike Facebook.
One of the most talked-about features thus far is Circles. Users can simply drag and drop people into different circles based on interests, etc. It's a lot like a Twitter list, only so much easier and more intuitive. It's also kind of fun.