I have the cornering LED lights and I can sense the auto-levelling continually. The fact that they are called cornering lights is slightly misleading; the cornering function at low speeds is almost pointless in my opinion, however the lights also extend their range automatically with speed, which is much more useful.
I do get flashed, but more often than not I am aware that they annoy other motorists. When driving up behind others on a motorway, I've noticed that some motorists get out of the way well in advance (and sometimes quite hurriedly) as the top of the projected light (with its blue tinge) hovers over the back of cars. In contrast the odd motorist seems to refuse to move over, and when I pass they will flash me, despite the fact I have not tailgated them.
I do love their illumination of road signs, traffic cones etc. though.