from what the people on the board say, the sachs kit is best if you want the smooth ride w/ better handling. i have H&R springs and bisltein sports. its is signicicantly stiffer than stock. very comfortable on good roads, less so on the rough stuff. i use mine as a daily driver and sometimes its gets flogged. its also on 17" wheels, the stock 15" will be more comfortable. if the roads where you live are pretty crappy its something to take into account. you just need to figure out where you stand on the ride vs. handling trade off.