The journal is ignored, but basic read only operations should work fine.
This software should be considered alpha, and provides no guarantees that the XFS filesystem remains unaltered (although the code does not support writing in any way). Use of the software is entirely at the users own risk.
The project is hosted at https://sourceforge.net/p/fusexfs.
The first release for OSX El Capitan (version 0.2) was broken. Please use version 0.2.1.