Some highlights:
Kyle really praised the build quality. No creaks or rattles, and soft materials everywhere. Headliner is now made of soft material, and the steering wheel material has also been improved. The trunk now has two power struts, so it should operate smoother.
On a side note, he shits on the EQS here. Says the one he drove was full of creaks and rattles, and this 3 was built better.
Seat material has improved. Apparently feels very similar to BMW Veganza.
Some minor panel gaps, but built at a very high level of quality.
Good front end. I give it a few years till other automakers abandon skeuomorphism and build front ends designed by engineers and not marketers.