It has been very reliable with barely any issues.
I like that the 2006 Nissan Sentra is a small compact car yet is comfortable and does not feel to small inside. I have been in smaller cars like the Ford fiesta and felt crammed. I really enjoy having a 4 door car because it is convenient especially for having passengers or kids in the car. The buckles in the back seat to latch child car seats on is a great feature. I thing for the most part it gets decent mileage. It has quite the acceleration which can be nice especially when you pull out into a lane and need to go quicker than expected. I enjoy having the auxiliary port as it is a slightly older car it does easily allow me to plug in my phone to charge or listen to music. When the motor died on our rear driver window though it was difficult to have fixed because there were 2 window models made that year and our car dealership didn't have that distinguished in their system. For a car that is over 10 years old and just over 100, 000 miles it is still running really well. I hope we can keep this car for another several years. We really haven't had any engine problems. The only persistent issue has been with car batteries leaking, even new ones and we don't know why. I think we will look a Nissan again in the future though as a possible car.