Crappy Suspension ? Your Question is it Sporty or Luxurious, How about both ! And with My Sways: I'll lean more toward Sporty.
Floaty @ High Speeds? How High we talking ? Any car gets lighter at High Speeds (DUH) but at 3510 LBS I don't think it's any more FLOATY than your Ugly-Butted Maxima.
Transmission is Avg. I would agree. Some on our forum have had some problems, but 95 % haven't experienced Bad. Compaired to Manual it will be Slower shift. What do you expect. I guess you actually could design a better Transmission and SS on the CAR. I suggest you start now; maybe by time your 80 you'll still be clueless.
As for Back Seats. I don't sit back there

but it's NOT uncomfortable, I just wouldn't want to take a Cross Trip Country in A COUP. For that fact wouldn't want to take a Cross country Trip in your Maxima either
__________________________________________________ ________
Yeah it rules especially when u consider that crappy suspension it has. Is it sporty or luxurious? Which one Acura? Well you did a good job on making it neither. It feels real floaty at high speeds too.
Worst transmission I've ever felt. The triptronic shifts so damn slow, it's gotta 1-2 second delay. The normal automatic functioning is so slow and delayed, not crisp at all.
Back seats have no back support.
Engine RPMS are way too low on the freeway, car has to downshift two gears to pass anyone, and with that wonderful auto tranny you dont wanna have it downshift two gears.
Other than that it's an awesome car for the money. Honestly, it is a great car, but there are some critical things that I've listed above that just kill it for me.