Best article yet about Google+

I’ve been reading article after article on the subject of Google+ and they run one of two ways: fawning and vague, or cynical and dismissive. This is the only article I’ve read that actually has any factual pros and cons from the usability angle. Bravo.
http://radar.oreilly.com/2011/07/the-good-the-bad-and-the-ugly.html