Another very good review by a reviewer I like a lot:
https://ichos-reviews.com/aune-s17-pro-review/
Icho includes a detailed comparison with the almost twice as expensive ($1300) Violectric V222, an amp that he reviewed very favorably recently and I had been strongly considering, though it would require several more months of savings. After noting their different strengths, he concludes that the V222 remains his favorite solid state amp, but the S17 is pretty close and is a true end-game amp.
BTW, almost as if he had been following our earlier discussion, Ichos notes that Aune has "departed from the latest “Chi-Fi” trend which values absolute scientific measurements more than actual music realism. Various brands that design audio devices without much inspiration with their only aim to make them measure better and better but in the end they tend to sound more or less the same, lifeless and sterile" and "follows more traditional “HiFi” methods with a painstaking tuning made by the ear and by carefully testing and hand picking the right audio components, among hundreds of them, until the final product meets their needs for the most realistic sound, despite the subjectivity of such a decision."
BTW, I'll be ordering the S17 tomorrow. After doing some research about AliExpress, which unlike Amazon sells nothing directly but only through third party stores, I decided to split the difference. The cheapest prices on the site (near $500 USD) were from stores I was not familiar with and were mostly new to AliExpress but I decided to buy from the HiFiGo store for $699 minus the $100 savings coupon (the S17 is not on sale on their own website). So hopefully, I should have it just before or just after Thanksgiving next week.