Sam,
The new soundboard on my Apollo is, actually, of standard technology. Hence, you did not notice any major difference in the quality of its sound.
I did, however, play two recitals on the “new technology” Salvi harps (World Harp Congress and AHS-Orange County) and am happy to share that it was a great pleasure to play those instruments! The overall impression was of a perfect balance of resonance, overtones, warmth, projection and ease of play, etc… Highly recommend trying them out!