I lived with the Omen Mk. I for a couple of years. Strength was speed (dynamics) and satisfyingly thick and meaty tone. Weakness was imaging: when most of the information is coming from a 10’ driver, it won’t disappear in the room. There is still a stereophonic effect, but I’m not sure they will ever do the holographic imaging thing.
It also likes power and may not be quite as efficient as claimed. 38 watts of tube power was enough, but I don't think an SET would have brought them to life.