I've only seen two operas and this was certainly different from the rich renaissance design and memorable songs of Rigoletto last year and to a certain extent the music seemed to take backstage. The singers were good (so simonjrogers says) although Peter Hoare as a Struwwelpeter Faust did miss one incredibly high note and Christopher Purves as Mephistopheles never left you in doubt as to who was in really charge. Christine Rice as Maguerite delivered her second half solos with grace. However I don't recall any of the music, except for the start of the motorcycle ride which was like the Dick Barton theme tune. With Rigoletto I could have whistled a couple of numbers the next day and still retain La Donna e mobile.
The equating of Faust's journey and damnation to that of German History leading to the death camps was certainly a bold choice however these themes are so strong that in the end they rather overpowered everything. However, as a spectacle, I'm glad I saw it. We had great seats at the front of the upper circle and I'll certainly remember the imagery for a long time.
Here are two other reviews.
You can see a video montage here and the BBC will be showing it in the Autumn. You'd need a big screen to do it justice.