Just a few observations.
1) Surprisingly, the Bose surround stereo in my 2019 Q70L appears to be exactly the same as my 2007 and 2009 M35 models - 15 years with no changes, but it still sounds good.
2) I like the electric folding wing mirrors but they aren't automatic. I like the auto dimming fluid in them too.
3) The extra few inches in the "L" model reduces the 'humpy' body side design and I'm sure the longer wheelbase improves the ride over the reg Q70.
4) I like that the front turn indicators are separate from the DRLs - lots of cars have white DRLs that turn yellow for turn indicators (not a fan of that).
5) I miss the individual front armrests that slid forward and the articulating headrests - also the double sun shades above the windscreen - last seen in M35 / M45 models.
6) the electric pull-down boot lid is nice but most modern luxo sedans have fully electric boot lids.
7) I really like the 20 inch sport wheel and brake package. The previous owner put Ironman brand tires on it but I will replace them soon.
8) It took years and years but they finally provide lowering of BOTH side mirrors when in reverse.
9) The rear doors and trunk are auto close - why aren't the front doors?
In many posts, I have made my disappointment with Infiniti management and planning very clear. My 2009 M35 was longer, wider, and better looking than all models beginning with the 37 / 56 models. I was 99% sure that the 2009 would be my last Infiniti, but then there came the "L" version of the Q70. Q70s are very rarely seen in my area - definitely an endangered species and the Q70L is nearly unicorn status - very very seldom seen. I looked for nearly a year to find an "L" with all the options including the 14-speaker surround stereo. This one has every option and I had to drive across the entire state to Ft Myers to get it. Some pics while at the car spa after paint correction / ceramic coating: