Well, so far the CoVox simulation is great! 😁
eeguru's been tied up with his job and not been able to dedicate the time he wanted to towards getting the other modes going fully. Technically its not emulation, but simulation since its all done in hardware. The idea is to drop it in, configure it up (Using ¡AudioLoca!'s plug'n'pray util), then launch your games with whatever the optimal sound config for the game is. The game has MT32 Intelligent mode? no problem. Tandy/PCjr Sound? Easy. There are headers on the card for classic wavetable boards, or a raspberry pi can be used to run something like MUNT. I believe the plans still include an onboard Dream IC. He showed it off some and gave a talk about it at VCF MidWest last year.