Actually the Y33 is much simplier than those A's were, way ahead of their time but a nightmare once the car turned 10+ years old.....if you want to lower it you need to get rid of pretty much the whole electric system and replace with coil overs or new shocks/struts and springs. If your near 100k your electronic system is about shot, so you can replace the system with OEM and renew.
The Q does handle much better when lower, however, it is a VERY big car and as such you've got to be VERY careful when riding 2" lower than stock. I have Tein springs in their with KYB SR Specials and I have to really watch it. If the Q was my only car I wouldn't have done it, but I have truck that i can take when I need to rough it.