Yeah it's a really cool concept and is actually quite well executed. I recommend you all at least give the demo a shot.

Went to cosfest(cosplay festival) yesterday,I got 10+ streetpass(the most I got in one shot) transactions though.Wasn't expecting that since it wasn't even a gaming event.

When I went to Animania earlier this year I got like 30 lol, had to keep getting my 3DS out and using it every time I got 10 so I could get more.

The most I ever got was 5 at one time. Never happened again, but since not many people have 3DS's in my area, I digress.

Mine was like 13 in a mall in a stand where a Kid Icarus: Upsrising tournament was taking place, the first 3 complete a previous set I was keeping with other 7 StreetPass connections, the remaining 10 came as I finish meeting with the previous 10. If it weren't because I had a party that day, I would possibly finish all may panels and quests all that day. Even worse I didn't brought KIU that day so I was unable to play at the tournament, where I would have gathered some new cards, almost impossible to find in Mexico.

Same for me,I only get 1 streetpass every few months since not many people have a 3DS too in my area.

The most I got at a time was two... and one of them was Reggie... through spotpass...

Speeking of Streetpass, the last room of Find Mii is damn frustrating. I've gotten every color except the one I need at least twice. More than one hundred play coins, wasted.

lol i got past it and to find mii 2 but i know that feeling. And the most street pass i ever got in 1 day is like 3 in a mall going to
both best buy and a gamestop

Isn't it the penultimate room, not the last one? I'm sure it is the part where you need a Mii dressng white to light the room.

Yup. That's the one. But like I said, I keep getting every color EXCEPT white...

that was more than annoying it was frustrating it was GRRaaaahhhhhh where is that white color mii when you need him

That moment when you need a certain-colored Mii, whether it be from Streetpass, or through Play Coins, but get every color but that... good times. It took me forever to beat the ghost with the light-blue shield. I haven't beaten Find Mii 2 yet, simply because I was too lazy to finish it (and because of a lack of Play Coins >.>), but I'm gonna get back into it again.

i have the same problem find mii 1 i got so many yellows when i need it i cant get a single one

Ha! envy me all, I got two white Miis on that quest at the first attempt. OK I should admit in my first quest it took me so many coins to get the a white "dog", but I got lucky in my second quest!