I own a Cayin A88T and couldn't be happier. I don't have much tube amp experience other than the Cayin, but I can tell you that it walks all over many SS designs, including some $30k Devialet mono blocks. This is especially true in terms of detail and soundstage. I have often read that tube amps sacrifice detail for warmth, that's complete bull IME.
Class D can produce an "open" soundstage but listen to one for a couple hours and then listen to a tube amp for a couple hours. No comparison IMO. The Cayin makes me want to listen for hours, with SS amps, especially class D, my mind wanders to my chore list.