Been using it for a while now, I’m quiet liking it. Today I also found a desktop gadget for it, nice one although it can not post to google+ yet. From what I understand the gadget is designed for Windows 7, so might not work on Vista.
Had a little trouble getting it working, strangely enough a reboot solved the problem, it insisted that I had Internet Explorer in compatibility mode, which I had not, and refused to save the login data leaving the need to constantly login to see anything. Perhaps there was a lingering windows update that resolved with the reboot.
I also found what was listed as a desktop application, GClient, didn’t quiet like that one, guess it worked well, but only residing in the systray it didn’t really meet my needs, I wanted something that shows the google+ feed on my desktop without clicking an icon. This one did have the ability to post to google+ though, but never the less, I didn’t quiet like it so it was uninstalled.
Should you be interested in trying out google+, I do have a few invites to sent out, just leave a comment with a valid email to send the invite to if you are interested.