Persona is one of the biggest hits in the genre of RPGs, Shin Megami the universe is probably the third largest in Japan immediately after the Final Fantasy and Dragon Quest. On these sides perhaps success is not the same, but Persona is undoubtedly a very successful game in our European territory.
Golden is a new version of a game released four years ago. The Combo Caster did not yet exist, but the critical acclaim was relatively unanimous in Persona 4 as one of the best PS2 games. Originally thought of as a game for PSP, Persona 4 Golden was eventually released for the Vita due to the limitations of the PSP and cuts that would have to be made to make the port for PSP.