I find the ZKit60 interesting as well. I wonder if Dan Kuechle, the guy who introduced this amp builds them? If so, may not be a long wait like Decware. Could call Sarah and ask though.
I also have been half heartedly looking into chip amps again, half hearted because I have such a good sound, and a good backup amp also. But apparently some pretty big players are moving this way with expensive amps, so the tech seems to be getting better.
My only in-home experience with a chip amp was when I got a chance to audition a freind's DAL amp, I think with their retro chip. And I was impressed how good it sounded in my room. Unfortunately this amp had a bad hum in my system I could not solve with cables or lifting the ground, and it did not have hum in its home systems, so I was wondering if it may have been something gone haywire in shipping... That made it hard to audition in depth, but other than that, the amp sounded amazingly good in my system in the place my highly tuned up Torii MKIV.... not as good, but a nice resolving sound with nice balances all around, especially for a relatively low cost amp (I think this one was somewhere around 500).
I have not tried the amp linked below, but what I have stumbled across with Topping talk is good specs and value. So for an inexpensive ready to go amp, it might be worth a try being cheap and returnable according to the webpage. A very careful listening audio friend who mainly uses Decware said he really liked the sound of a different amp using this same German chip, his impression that the chip was a good one, and he has been using quality tubes a long time. And chip amps seem to be moving into better territories these days, seeming to be getting quite good with the right designs. So this might be worth a listen?
EDIT: sorry, I can't seem to get this link to cut and paste, but if you go to the following, and then click the Topping PA3s link, you will see it. Listing = Topping PA3s Fully Balanced Class D Power Amplifier 80W×80W RCA/TRS Input Desktop MA12070×2 HiFi
https://smile.amazon.com/s?k=Topping+PA3&rh=n%3A281053&ref=nb_sb_noss