Do Many People Comment With Twitter Or Google+ On The Comments Plus

I have the Ultimate Facebook plugin installed and running. And was thinking about adding Comments Plus. So, I have two questions:

1. Will Comments Plus play nicely with Ultimate Facebook? (I assume so...but just wanted to check)

2. Has anyone using this noticed if many users choose to comment with Google+ or Twitter?

If you've used both of these plugins and have any comments or feedback about them...I'd love to hear it.