If you've rode in a car with KW CSs and they meet your needs...why not? But if I had to make this decision...I'd go with the JRZs. Nothing worse than buyer's remorse later on and then having to spend more money to getting what you really want.
2015 F34 328iX GT Glacier Silver
2011 E90 M3 Monte Carlo Blue
2004 E46 M3 Imola Red