Terrible, horrible even—for me—malware. Before you install do a search for "how to uninstall OSXFUSE." And also MacFuse. Like others I had HD-destroying, months long kernel panics before I realized it was this, and I'm still suffering because the "developer" won't help. You can delete it via the PrefPanel but parts remain, doing who-knows-what because they remain active. Just check Activity monitor for what the "MDS" panic means. I fell for these reviews and hope others won't make the same mistake.