I have 182K miles and Active Steering and Dynamic Drive. Never a problem with AS and I'm in the process of getting the Dynamic Drive block replace. I’ve gotten intermittent Dynamic Drive failures in last 10k or so that usually resolved on its own after 100 miles or so. Now, the failure is consistent. Tech said a bad sensor was detected and the Dynamic Drive block needed replacement.

Both options are worth it. The new g30 doesn't offer both options at the same time which is odd. Still planning on keeping this one for a long time.