I purchased this car about 2 weeks ago, and so far I'm relatively happy with it. The cabin is quiet, and the car is very powerful, making it very fun to drive. However, we recently saw our first glimpse of snow which resulted in a light dusting. Somehow, this incredible car was completely immobilized in a parking lot by a dusting of snow! I was nervous about purchasing a RWD vehicle because of this exact thing, but my fears were assuaged by the salesman and online reviews, all of which suggested that RWD vehicles have come a long way and are no longer a complete liability in bad weather. I still really enjoy driving this vehicle, but wouldn't recommend it for anyone who wants to use it as their primary vehicle where you may see even a little snow or ice.
For the money I don't think you can get a better luxury sedan with regards to price to feature ratio. I got the R-Spec version which comes with just about all available options PLUS 400 Horsepower. Other cars in the same class with similar features that I looked at cost at least $10,000 more. Aside from a few minor annoyances (no display of current climate settings, trunk lid design that lets water flow into trunk when opening) I've been very pleased with the car.
Lots of power.
Heated front and rear seats.
All of these I think came with the 2015 but here goes.
Cooled passenger seat.
Better climate control feedback.
More interior storage.
Fold-down rear seats.