I got the bilsteins, they are not adjustable, and have the bilstein springs i think (blue ones) they are awesome if you hold your line right through the apex they hold beautifully, if your turn in too sharp they can dip , giving the impression they are too soft but really you just haven't taken the corner properly..
They are really comfy and perfect for speed humps too, people are constantly amazed at the speed i approach them, its not super low,but it is low...Scrapes leaving my driveway...And thats with the not low S1 bumper
So for everyday, id give them the If you can afford them cause i absolutely love them....Really just depends if you want then adjustable...if you set a street car up right first time you want need adjustables anyway.