Nothing.
Great on gas.
Rides nicely.
Nice looking.
Expensive on insurance.
Better than my girlfriends crappy 2000 Neon.
Quick little car.
I tend to agree I just bought a sentra ser and I do enjoy driving it.
Pros.
decent styling
lil sub in the back (its cute)
great handling
quick
mine has great a/c
the 5 speed is nice (want the 6)
cons.
It starts hard when is has been
sitting in the sun. (if anyone knows how to correct this please tell me)
nismo is expensive
the instrument panel is nice
but the rest is kinda plain.
These are just my thoughts and I could be wrong, but I enjoy the car very much and I would recomend one.