With a few more evenings of listening time, a few more observations. Bass and dynamics are really superb. Both those elements got slightly better with playing time. I find this amp quite reveling and true to recording quality.
What I find strange is that lead voice tracks often appear too far back in the sound stage and certain instruments like a piano, lack a bit of the weight expected from a good class A/B SS amp.
I moved the gain from mid to low with no discernable difference is sound quality. Nothing that cranking up the volume could not address. No problems whatsoever mechanically (on/off, warm-up time, disconnecting and reconnecting cables, etc.).
This amp does a lot of thing really well. Nipping at the heals of good Class A/B. I would not say it surpasses it. But does kick the crap out of previous Class D I’ve used.