I really wish people wouldn't bash Mami in this game. It's like that's all I see everywhere I look, lol. She's the hardest to master and that's about it. Once you can master her she's downright amazing. Especially that Tiro Finale!
I feel like I'm the only one that feels that way. You can combo with her really well if you just know what the heck you're doing
I beat a few laps using just her in order to get better. Just takes time.
Mami = for the more skilled (or so I believe) :P