Nothing.
The quality and refinement are unsurpassed. Considering the wide range of option packages available, it can be purchased as an economical family transporter or a luxury sedan. I paid less than $17,000 for my DX model. It is roomy, comfortable, and economical. The 135 hp four will cruise at 75 mph all day and return 27 mpg. Unless you have a serious lust for horsepower, or a big ego, anything more is just window dressing.
Honda cars have got to be the most overrated cars ever built. It seems that anyone who owns a Honda becomes a brainwashed Lemming, buying into the delusion that Hondas are defect free, never break down, and have better performance than any other make of car, especially those "unreliable American gas guzzlers". The automotive press consistently praise Honda products while overlooking their flaws, and do exactly the opposite to any domestic vehicles.
Hondas are wonderful cars.. I have one and haven't had any problems with it... I was also in an accident recently with it.. I got rear ended by a chevrolet truck... My honda just had a few small dents...the front end of the Chevrolet was destroyed... If that doesn't say something good about Honda quality..I don't know what does!! I have 63,000 miles on mine and it drives like new!