I have owned this car for 3 years, well just over, and it has been a great car for me (read: college student, poor, etc.) I put 64k miles on it in the first two years and with basic maintenance it's been wonderfully reliable, starts every time and stops just as well. Here are the negs: not very peppy, even with a manual and after-market intake (had to try SOMETHING to speed it up!), the interior is noisy at 70MPH+ but that's expected, cup holders are self defeating as they block radio and climate control, STD comes with NO frills, and I mean NONE! Oh, and the stereo bracket might as well have been made for stereo theives, so easy to take. Good car for college and High School students.
Reliable as any Toyota or Honda, great fuel economy, even with a little collision damage it refuses to rust much. I have been hard on this car to say the least (as most young people are) and it has never let me down.
It's a little late to tell Nissan what to do with the Sentra (the new generation is garbage IMO) but it could stand to have a slightly bigger engine, maybe triple door seals for sound deadening, and for pete's sakes put a TACHOMETER in the 1.6 litres, not just the 2.0's!