ROM’s work fine (I’m happy with that) but I believe RetroArch MAME support is one area where RetroArch can really get so much better in the future. All other things in RetroArch are done pretty well except this (at least for my needs). For example lot of the hotkeys that RetroArch uses are not in sync with hotkeys MAME uses, same with controls which sometimes interfere with each other and when I try to remap them inside of MAME options (tab key) I get double keys. Ability to import MAME ROMs on RetroArch playlist would be nice too. I would most of all like too see all menus you can enter in MAME moved to RetroArch’s “quick menu” if that’s possible.
That being said I believe RetroArch could be great interface for using MAME (even best) but the question is when.