As others have mentioned, it seems the topology of the amplifier isn’t what’s important but the implementation. I really enjoy both my Class A Pass Labs XA30.8 and my Class D Primare A60. They each have a different sound. The Primare almost sounds like some tube amps I’ve heard. Just very smooth and nice to listen to. The Pass is... well a Pass Labs... absolutely amazing with detail, imaging, tonal accuracy etc. But it also is like having a heater in my studio when it’s running. I have a solid climate control setup and only run the amplifier when I’m using the system but yea it’s a lot. I’ve also tried quite a few A/B and D amps that just didn’t cut it compared to these amps.
Best advice I can give is if there’s ANY way to demo that piece of gear, then do that before purchasing unless you get a very good deal and don’t mind reselling. You just never know what it’s going to sound like in your system until you get to live with it for a while and A/B it with your current setup. Class D are lightweight so at least they aren’t rough with shipping costs! Best of luck to you OP! Please tell us what you decide.