I needed a car to haul ~ 1000 lbs of equipment daily and the Matrix doesn't disappoint. Mileage ave 33 +/- 5 mpg, troublefree at 4 years old. Interiors are Ikea appearance and quality, soft plastic easily damaged otherwise looks 'durable.' Chrome trim is paint on plastic. Gauges hard to see in bright sunlight. Perfect student, starter, delivery, taxi fleet car. Nimble, easy to drive. Blind spots on rear fixable via adjusting side mirrors. Comfortable enough for 1000 mi one way drives. Adequately powered, can be floored to leap from entrance ramps, shut aircon for best torque. Poor traction from stock tires on bad roads.
Gas mileage & reliability. Compared to cars in its class its a 10/10.
Gauge visibility is WORST ever, el cheapo paint-on far more readable. Stock CD player should have an AUX jack for iPods. Add more pockets, hooks. Use better quality plastic or a tougher coating to scuff prone areas in rear.