My own experience with the firmware is also very positive, a veil has been removed. I've never been satisfied with my Meridian kit for music compared to my Mark Levinson/Revel setup, but it's now getting there. For movies it's a big leap in clarity and bass response.

Two things bother me though...

Firstly, it was stated that MRC doesn't need to be re-run, yet one of the more noticeable differences, to my ears, is in the bass reproduction. Bass is now more concussive (read louder), which is pleasing, but makes me wonder whether my MRC needs to be redone because one of the things I had before MRC was too much bass... the reintroduction of bass could now simply be excessive once again.

Secondly, if the firmware has made such a positive differences/corrections to sound, why haven't reviewers over the past decade noted the pre-firmware deficiencies in the Meridian sound........