Meridian Trifield?

Reading "TAS" editor Robert Harley's book "High End Audio", and am intrigued by his comments regarding Meridian's Trifield playback algorithm for playing back 2-channel sources over more than two speakers. He writes "it fills the center of the soundstage, presents a wider sweet spot . . . profound ability to solidify the soundstage."

I cannot help but wonder, if the results are so compelling, why is it not more utilized? Are forum members able to offer views on this or relate experience with Trifield?

I have also heard "anecdotally" about negative reliability and usability issues with Meridian product. Is anyone able to comment on this as well?

Thank you.