I'm only 6'2", but most of my height is in my body - stubby legs with a 34" inseam
At first I found that the rearview mirror created a bit of a blind spot since it was right in line with traffic and could actually block my vision of cars approaching from the right in an intersection. I made a mount that moved it up an inch or so, but wasn't happy with my view out the back. The solution for me was to pull the seat out and take out one of the springs under the bottom. This is an easy thing to do and allows you to lower your body deeper into the seat. While I had it apart, I also added some additional padding in the back which made a real difference for me. Since these modifications I've taken several long trips with no comfort issues.
We commute 80Kms a day. The Insight is actually a very relaxing car to drive because of the tall gearing which results in low engine RPM. The only complaint that I have is road noise since there isn't a lot of sound deadening insulation on the car.
I prefer the manual transmission. Driving an Insight is a real treat. You are involved! I've never driven the CVT, but it sure doesn't sound like much fun to me.
Enjoy.
Bill