I get great gas mileage in this car... I average 30 city, 34-37 highway.
I once got 40 mpg and that's going through mountain roads.
The only problem is the build quality, my engine went at 85xxx then my tranny at 146xxx.
I could understand the engine because at the time I was doing deliveries with the car plus it was an unbearably hot summer.
The tranny it just all of a sudden gave out without any warning.
I've read from other sources that many people have this problem with the early 2000 civics (bad trannies).