Here, you can give and discuss your in-game personality on how accurate it is and what not. Even if you have the game and set a personality for your Mii, I feel you should take the quiz on the official website as I feel it is more accurate and gives more results than the actual game's personality test.
For me, I am a Confident Designer. My perfect match is an Outgoing Charmer. My ideal room is an office, and my ideal clothing item is a doctor's coat.
I feel this is pretty accurate as the type of career I am going for calls to be in an office as well as wear clothes at least similar to that. In addition, I do think my actual love interest would be an outgoing charmer as I feel I want to around a more charismatic, extroverted person, as I feel they would understand me and they would be able to help me if something goes wrong or I start to worry about something. Also, I plan to be an indie game Designer and I am Confident in my ideas and abilities in game design.
I am an Outgoing Charmer. My match is a Confident Brainiac. The room that would best fit me would be a Soccer Stadium, and outfit would be the soccer uniform.
I don't have the game, by the way. This doesn't even look close to who I actually am.
I don't have the game (yet?), but I took the quiz out of curiosity. I chose "New York", though, since only USA states are in the list (not sure if that makes much of a difference).
You are an Easygoing Buddy in Tomodachi Life
Overall: Relaxed, open minded, empathetic.
Character: Does things at his/her own pace in a genuinely honest and kind manner.
Trustworthy and considerate. Puts his/her friends first, and works hard to make sure everyone gets along with each other.
Your ideal match is: Independent Free Spirit
The room that best matches your personality is: Fairy tale castle
The perfect outfit for you is: Princess outfit
Doesn't really sound like me, but I am rather amused at the room and outfit, haha.