Primaluna Dialogue Premium with KT150s. Has anyone heard these?

I’ve listened to a few amps with KT150 output tubes. One standout was the Audio Research GSi75 integrated. Amps that use this tube seem to sound excellent in every way - detail, spaciousness, body, tonal quality, impact. Just wondering if anyone has heard Kt150s on a less expensive amp, like the Primaluna integrated, which normally uses EL34, KT120, etc.
My friend has the Prima Luna Dialog HP integrated with 8 KT150 tubes.  It is the best sounding integrated I have ever heard and with his Harbeth speakers, you can listen all day and then some.  Powerful yet delicate when needed.