Traded in a gas-guzzling SUV for my Civic Si and couldn't be happier. I love the small steering wheel, relatively short throw shifter, exhaust sound and the handling. Seeing how well it handles the ride is actually fairly comfortable for this type of car. The exhaust isn't loud and weed-eater-like but it has a nice hum to it at 6000rpm's. I've been averaging around 32 mpg @ 75 mph.
6 Speed, exhaust sound
More front seat adjustability. I'm 6'4" and could use another 2" of rearward adjustability.