Our group played the 2012 French adaptation of the campaign, few years before Chaosium made more in-depth changes to its storyline. I would simply say that by 2010s standards, the Masks of Nyarlathotep was a rather disappointing experience: while the pulp feeling was strong indeed, the main plot was dull and the situations called for the absurd death of too many PCs. The latest changes made by the reedition seems to mitigate those issues, although I suspect they cannot be totally addressed without entirely rewriting the script.

Rules-wise, we started with the regular rules of the 6th edition of Call of Cthulhu, and after ~10 deaths among the PCs, we decided to switch to the more narrative system of Trail of Cthulhu. Never regretted the move.