It’s been about 32 hours since I accepted my Google+ invite, and I’m ready to give my initial reaction.

My signed-up friends — most of whom are former journalism school classmates — and I have used Google+ to debate the merits of Google+. How meta. One of my friends called it “Facebook built by the post-Facebook generation.” Others praised its cleanness and ease of use.

While I maintain a pretty far-flung social media presence, it’s rare that I join a platform this early on (although my Facebook account, from June 2005, is relatively ancient). So I thought I’d take advantage of that and offer up my impressions. Here it goes.

This slideshow requires JavaScript.

• The design is remarkably clean and straightforward. It doesn’t have a signature “look” like Facebook just yet (although it dovetails well with Gmail, Reader, Docs and other Google goodies), but nor is it an eyesore like MySpace tended to be.

• I love, love, LOVE the idea of circles. My friends’ opinions vary somewhat — some praise it, others think it builds walls needlessly. My one hangup with Twitter is that it’s hard to separate personal, non-DM replies to friends from more professional/serious tweets. With circles, you can easily keep professional items professional and personal items personal. You can do this with Facebook, too, but in my experience it’s a much bigger headache.

•  It seems to take the best parts of Facebook, Twitter, LinkedIn and Tumblr and combine them. You’re free to shape your profile however you want — one of my friends is off and running with GIFs, others are sharing videos and photos and others are having conversations through status updates. It has a definite “it is what you make it” feel.

• The simple yet aesthetically nifty way that Google+ displays photo albums is something I like, but I haven’t seen much said about it. Instead of cycling through individual photos in an album or seeing a wall of uniform thumbnails (like Facebook), photos are displayed with their cutlines in a crisp mosaic. Thumbs up.

• I like the idea of Sparks, where you submit subject tags of interest (politics, economics, news, whatever) and receive a filtered newsfeed as a result. It’s nothing that Google Reader and a Twitter feed don’t already do, pretty much, but it’s nice having an in-platform option.

• I’d like to see photo- and video-specific postings that allow URLs and not just file uploading. You can share online photos and YouTube videos, obviously, but as far as I can tell it’s treated like a generic post. Given Google’s ownership of YouTube, this is kind of awkward. EDIT: Google+ actually does allow for photo- and video-sharing using URLs. For some reason I was unable to locate it earlier, but it’s definitely there. Consider this shortcoming deleted.

• The hangout feature, which is basically a sprawling video/chat meet-up (either planned or impromptu) has potential, but I confess I haven’t tried it yet. It looks like some outlets, like The Huffington Post, have used it already with some success.

• Unlike Twitter (which allows one “official” URL) and Facebook (which buries them), Google+ lets you link to multiple personal and social media profiles, and displays them prominently on your page. I have links to this blog, my LinkedIn profile, my Tumblr, my Twitter and my Foursquare. Nifty.

• The biggest complaint: so few people. With about 4.5 million users (last time I checked), Google+ has less than 1% of the registered users that Facebook does. It seems content to follow a pace of steady, gradually increasing growth. I think its real test will come when “normal” people — not journalists or technology enthusiasts — start migrating over, if they do. Google+ has to offer them something that they’re not getting with Facebook or Twitter. What that might be, I think, depends on the user. But Google+ can’t rely too much on exclusivity and being a journalistic utopia, or else it could easily go the way of Google Wave.