The fuel economy is pretty good for a car of this size. I have averaged 36.5mpg (imperial gallon) over the last 37000km. 85% highway, 110km/h and little sitting in traffic. It gets very cold here sometimes so the mileage suffers. In Dec/Jan when it reaches -30 C (or colder), I get about 33mpg and in the summer about 40mpg. My best was 44mpg in the summer and worst was 31mpg in mid-winter when the car was new and not broken in. I keep track of the mileage with an app on my cell phone so the numbers above are exact.
Smooth, quiet and responsive.
Features are very good on a GL model (which is the "lowest" trim level) for the price. I paid about $4000 less than MRSP. You get all you really need for commuting: A/C, cruise, power locks/windows, heated seats, XM radio, 6spd auto, stability control, antilock brakes and much more.
Easy to hear radio and comfortable to be in for longer trips.
So far the car has been great. I had a 2011 Sonata (which is the identical car) and put over 90,000km on it and then traded for the exact same car (a 2013) which now has 36000km. I have had no warrantee work done the either vehicle.