I went from an 88 Iroc-Z, to this 90 Si, and surprisingly, I still had fun. I bought it because I wanted something more reliable, with better gas mileage that was still fun to drive. The handling was wonderful. The combination of double-wishbone suspension and the lack of power steering made you feel like you were connected with the road. And because it was so light, it really didn't need power steering all that badly. But then she bent a rod... I lost respect for my Si, along with some money, but no hard feelings. Pay attention to the belts and you won't have any problems.
Surprising amount of space one the back seats are folded down. Ridiculous handling. Wonderful gas mileage (30-40).
More power. The JDM B16 would have been magnificent.