I briefly owned the Ayon CD2. I really did not like it and could not sell it fast enough. I found it to have a very forward sound signature that was fatiguing to me.
Others love Ayon digital. To each his own. I would try to demo or buy used. If you have a laid back system, you might like it. My system is fairly revealing...
I have not heard the other CD players you are thinking of, so cannot help on that front.