The Brembo rotors have been known to have issues on the street (cracking).
As for pads, I would not go with anything less than ceramic or carbon. I have around 40k miles on my Axxis Ultimates and still have over half of the pad left. While I like these pads, I am not saying they are any better than others just that if you want something good, go for ceramic or carbon, not semi-metallic.
In a way that kit seems silly, high end (?) rotors, stainless lines, and average pads. If I were doing mine today, I would go Axxis Ultimates or similar, stock rotors, and stainless lines. The best rotors for all around use seem to be the factory ones.