The Overview basically sums it up... You just can't beat it for the money, used with aftermarket 5 yr 100K warranty for $7400. I did have a few slightly costly repairs from the previous owners minor accident, but it is well worth it in the long run. Everone should have their own Insight at least for a daily driver. I'm sure the costs would drop dramatically if enough people were buying them for commutes.
IMA - Integrated Motor Assist, wouldn't work without it.
Arm rest, stereo upgrades, real carpet would be nice, better placed cup holders, hard to think of anything worthwhile at the moment.