Nissan quality has went down hill since the 90's.
The 2002 -2005 2.5L
commonly has the head gasket go bad, before 100k miles.
Mine went at 98k miles.
If you pay someone it will cost you $1,600.
Also it is possible that the forward catalytic converter will go bad, blow debris into your cylinders, and ruin them.
WIth cloth seats, the drivers seat is rock hard.
The seat doesn't support my thighs,
The Altima is supposed to ride stiffer and sportier than other cars, but on a really bumpy road it is just torture. The throttle is touchy it just lurches forward in stop and go traffic, I have to put the automatic into 1st or 2nd so I don't get whiplash.
Wind noise on sunroof.
Nice looking on the outside and inside.
Powerful, very good acceleration, spacious interior and trunk.