I've done 2 track days, motorkhana and a number of spirited drives on my qfm a1rm pads and rda slotted rotors all round and theyre only about half worn.
i averaged on 1.30 at mallala on shitty street tyres and running 10psi (anyhting over computer has a fit). Minimal brake fade after 6-7 laps.
Theyre great value for money, and i will be getting another set once these are goneski.
Might also depend on the way you drive i guess, some people i know chew through pads and rotors no matter what they are.