Apparently the emulator they are packaged with is junk but from reading the thread the ROMs themselves can be yanked out and used in MAME without issues.
If anyone has these (or buys these) and wants to comment on exactly what you get as far as the ROMs are concerned (i.e. how what you get compares to what MAME wants, which specific sets you get etc) please do so, I am interested to know more (but not interested enough in actually playing the games to spend the money to buy them)
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Flat 
Neo-Geo roms now legally available on GoG.com
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