I would not recommend the original or the advanced.
I really liked the élan but wanted a full face mask for the many times I have nasal congestion.
The Anew full face mask takes some getting used to. It is more prone to leaks than the Élan.
I have been using it now for a couple weeks with mixed results. Some nights AHI ~2.5 last night 5.6, some nights around 10. My sleep study AHI was 78.
The 2 problems I have with the Anew are leaks and irritation at the bottom of my nose (between the nares). Both problems are intermittent.
I definitely recommend you try either the Élan or Anew, but only with return insurance.