I was wondering if anyone has tried the Poseidon Xtreme regulators series.

I've noticed in SoCal that I am seeing more and more Xtremes used by both tech divers and divers that seemed to be into higher performance equipment.

They seem to have 4 models, Deep, Deep 900 approved for trimix down to 200 meters, the Duration model for Nitrox to 50% & the Deco for 100% 02

Has anyone who has used an Xtreme care to comment?