Just got it, so far it looks and plays perfect as far as I can tell.
From the Patreon post:
Simpsons' PCB resembles Vendetta’s and it also has pretty much the same video subsystem as Konami’s X-Men. You can expect to see support for these arcade boards soon.
NeoGeo Pocket development continues and we found and fixed two more bugs but there still seems to be more hiding as the system is not stable yet. Work on CPS3 or System 18 will not start until NGP is completed.
Finally, the Black Tiger core for the Analogue Pocket is promoted to public and it can be found in JTBIN as usual.