As long as this doesn't have the crumbling piston problem, this is good, especially when it offers rotor diameter increase to a size beyond what the current M3 got. And I thought $2k is pretty good value also? Yes the rotor is not the best (not 2 piece floating, not convergent vane design), but I'm sure one can buy better rotors after this initial set is worn out.
I can only dream of 370mm x 30mm rotos on the 135i without breaking the bank...
Ground Control Camber Plates, Ferrodo D2500 w/ Slotted Rotors, Dunlop Direzza ZII on Apex EC-7s