Fronts are VERY easy to adjust, rears can be tricky. What I did was to buy a cheap 1/4 ratchet (smallest one you can find) then use a 3/8 or so socket into which I glued the inside of the plastic knob that Koni provides. It means you trash one of the adjusting knobs but it works really well to reach the top of the rear struts.
There is definatley a difference between stock and softest koni setting and between soft and firm. Try it, you'll like it.
