Switch is easy to use, little bit better than the older versions as you can use the new one to read the values off the car - I always used to forget.
The main bits on the new one is setting A B & C, you can pre-set 3 different settings into the unit for fast switching or connect up through a laptop (USB) and alter your settings that way.
I run 6/6/9 on an everyday basis (Non Ed30 mind), when playing with the settings its always best to do some logging to make sure the CF values are not too high.