You said they are better than A/B amps, but what about tubes?
i've been to countless shows (and I'll be at CES next week), so I'd like to check out any class D i may have missed.
I'm all for buying a class D amp if I can find one better than ARC Reference level tubes, but I haven't found any of these digital amps certain people claim "sound like tubes" yet. Actually, none even close to that sound quality to my ears. To me, they seem night and day different.
The closest thing class D I would buy at a certain budget range is the Lyngdorf which keeps everything digital until output and can provide room correction that provides a distinct advantage for many users.
The new Technics with CAT6 input and a LPS sounded promising too, but only the budget model had price commensurate with performance.
Otherwise, I can't recall any from recent shows. If any digital amp should sound good, it would be Mola Mola given the pedigree of the designer. I can't say I was impressed with even their stuff, especially the price (to be fair though, it was limited exposure).
i always keep an open mind...errr...ear