Has anyone noticed any difference in the rankings by using +1 Button?

It seems that Google has over emphasized the importance of +1 Buttons.

Please do not associate Google+ with Google+1.

Interesting, I thought I was the only one.
Hundreds of +1 votes and no change in rankings.

I agree Google has exaggerated +1.
Just remove those buttons if they ain't working for you.

Google+1 Button has been around just for a small time.
Give it some time!!

It increase SEO if you are logged in...

Obviously Tomhtml doesn't know anything.

You are possibly the first person to ever say that about TOMHTML. Dude knows his shit.

+1James :P, but aside of that, the plus 1 button only causes an increase in rankings for the connections of the people who plus one'ed the page. Google mentioned at some point that it wouldn't use it to change the overall ranking because that would cause botting to become worthwhile.