I think the current Altima has one of the nicer interiors in the midsize class, in terms of layout and quality of materials. The only thing I didn't like was the orange/red instrument lighting. I find the softer blue of the Sonata much more agreeable on a long night-time drive.
Jaeger
Yes orange has to go, anymore its a little bit too Pontiac for my taste.
IceandFire, obviously we dont all see the same things when we sit in a car I guess, but here is quick run down:
doors - thickly padded armrest, padded centre panel, padded upper portion.
armrest- thickly padded and moveable
instrument panel - very large padded portion with a very nice texture that could be compared to a type of leather(not sure what to call it) - the panel is also devoided of joints, they have been kept to a minimum - glove door, heavy and closes with a solid thump feel
shifter - nicely covered with leather and a solid feel, if anything annoys me is a sloppy shifter mechanism which we do see nowadays, small detail but.....
steering wheel - covered in leather, tilt and telescopic
audio - Bose(I know there is an anti-Bose crowd here)but Im not an audiophile so it sounds great to me, more importantly it has SAT and Handsfree with no requirement to buy those expensive modules to make it work.