CANADAGS400

I'm thinking of getting the L-tuned springs and shocks in combination with either 18" or 19" wheels.. I want a lower look but do not want to lose the Lexus feel. I dont want to worry about bottoming out. Is this the right suspension for what I want. How different is the H&R and Bilstein setup?

Can anybody who has these mods explain the difference in ride quality etc..

Are coilover worth the difference in money? Would any brand of coilovers give me the characteristics I'm looking for?

Thanks for the help.

JR