I believe that I will have no problem regarding her personality and how my parents will receive her, provided that I get a job. Which, of course, I will. They might get surprised for a bit that their son, who rejected marriage for economic reasons, is finally getting a girl for himself. As for friends, no problems regarding that if they don't exist.
The only problem I will have them is her appearance. ZUN's art portrays her and the other characters in her home world as little girls but many people believe that it is only the result of him being bad at drawing, so their ages are ambiguous, much more of their appearances. But well, ZUN said once that Marisa is somewhere in her teens, so that will be...a bit problematic.