Had a little problem with the "blank" page, which I resolved in the forums in 10 minutes.
Support is fast, so no problem at all with that.
Love all the options available!
What you should know:
- adds 70ko of code to your site, but I would say it's even more because fb/twitter images are loaded from external sources. Not so good when you try to keep a website lightweight for mobile use.
- You might need to get your hands dirty in the CSS to get the width properties do exaclty what to do (to avoid text trucation for example, as it happens for the french language)