The plugin was made with compatibility in mind, but other plugins can works in such a way that they cannot be combined. I cannot test with each and every plugin, but it was reported that it works with Disqus. Basically you’ll have to try it yourself. If you report back what works and what doesn’t, you will probably help others with the same question.
The question is if Disqus is compatible with Add Link to Facebook 😉 If you try, you can also try to enable the option ‘Do not execute filters for comments’ (plugin settings tab admin). Of course assuming you did enable the comment integration options of Add Link to Facebook.