I've had my Yaris for 20,000 miles and love it. I do highway driving and have never gotten below 37 mpg, with a personal best of 45 mpg. I travel on the highway at 75-80 mph with no issues or fears. I'm 6'1" and am very comfortable in the vehicle. No issues at all.
Turning radius. MPG obviously. The oil filter is extremely easy to change with no spilling. Fun to drive.
Fold down rear seating. Second power outlet. Seating fabric is very cheap. Cheap trunk latch.