I was the second owner of this car, the previous people decided it needed some upgrades but never completed with a turbo (pity). I drive 30 miles one way to work and get on average 32-35 mpg, can't beat that! I have never had any major problems with the car, would recommend to anyone looking at a Civic Si of this style or anything with good MPG.
I love the placement of the shifter! Clutch feels great and MPG is hard to beat!!! Seats are comfy for in town traffic, little hard for travel, but not as bad as some!
The sound system is less than I would expect, a lot of road noise, it could have used a 6th gear in the tranny, RPMs are higher than I would like when going highway speed.