Hey Beezwax, just leased the same car, mine is platinum graphite with the luxury option like yours. My last one was the 2014 with Luxury option that had a little more, like ac front seats but most importantly the memory seat. I do miss that option. The other stuff, like moving headlights and rear curtain, etc. were nice to haves but not deal killers. This model also has the older hex grill instead of the new vertical chrome grill, again, not a deal breaker.
One thing I keep hearing in the reviews is that this car has average handling. I have to disagree, this car has excellent handling, better than the prior model and good enough to maintain 55-60 on a circular on ramp with a 35mph limit.

. The other huge improvement is on road noise....... there is none!
Other than limited availability and marketing the Cadenza should rank right up there with best in class. It's nice being the owner of a rare car though!
Take Care,
Dan