Sinni is a self assertive girl who is quick to voice her views upon just about any given subject, even if it's just to call it "a bit shit". She is often uncompromising and incredibly stubborn when she believes she is right about something. She has been known to fight to the death to win even the most insignificant of arguments. She is a boisterous, enthusiastic and outspoken. Rebellious though unsure why or what she actually wants to be fighting for and extremely impulsive. Although many see her as unnecessarily confrontational and intentionally distant she will treasure those who she becomes close with.

Ultimately fun loving and thrill seeking Sinni is in constant pursuit of activities to keep her occupied, even if at times they end in potentially dangerous situations. Deeply passionate about her music to the extent that it rules her life, sometimes to such an extent she that finds it difficult to identify between her real self and her stage persona, Sinnicism.

When on stage Sinni is truly at home. She throws herself into her sets with such energy and enthusiasm that her live shows have become incredibly popular. She often showers the front few rows of the crowd in water mid set, is frequently known to remove her shirt and throw it into the mass of jumping bodies and has consistently wreaked equipment 'rock'n'roll' style ever since she got sponsored by a label. Most famously she ends her sets by stage diving during the final song and crowd surfing her way towards the nearest bar, a course of action she affectionately calls her "exit strategy'.