6'2", no problems unless I go over a nasty bump, sometimes hit my head on the roof.
One thing I did that really helped visibilty is to adjust the hieght of the rear view mirror: grab the mirror and move it up toward the top of the window. Since the mirror has 2 joints, it can be pushed up towards the roof a couple inches.
when I first got the car, I drove around with it "down" the window for a couple months until I realized it could be moved up.