We all know how useful Google Analytics is in helping you understand your user onsite behaviour. On the other hand, user onsite behaviour strongly affects site rankings, and if you have high bounce rate, short time spent on site/pages of your site, low return rate - you're unlikely to ever rank high.
My understanding that without GA installed Google can't monitor your user onsite behaviour, and if that's the case - it shouldn't affect your site rankings. Or do you think Google has other means to detect the user behaviour on your site?
I also read that some experienced SEO providers do not recommend installing GA to help sites rank quicker/easier.
What's your opinion and expereince on that?