Last night I demoed the Flux Elixir and compared it against the venerable UAD Precision Limiter. I ran another master with the Elixir instead of the P-Limiter. I used High Res and 5 stages with Dynamics.
The results were obvious and a bit startling. The Elixir version was more open in the high end (air) and transients, I could hear more details even in dense BGVs, vs a slight smearing with the PL, the bass was tighter and more controlled too.
This is for acoustic/electric music and not a super dense mix but not sparse either. Not hard rock or other more intense genres, so keep that in mind. I'm listening for fine details, dynamics and musicality, and I'm not going for max loudness.
Needless to say, I bought the Flux Elixir today! It also worked better on the mix too, resulting in a significant improvement overall.