We recently traded this car for a Saab 9-3 because this Matrix did not have traction control and without it was pretty scary in the snow/ice. The car is very unsure of itself with ice and snow.
The car has a TON of room and with the seats folded down rivals most small to mid-size SUVs.
This is not a car for a long trip. We drove it on a 2000 mile road-trip and while the headroom is very good, the legroom is bad for someone 6 feet and over, and the seats are not supportive. I had to fold my legs into the legroom area to make myself fit as I am 6 foot 2.
The engine makes a lot of noise and vibrates the car a lot. We drove the car up through the Rocky Mountains and the poor car was in the upper RPM range for a few hours and was not a happy camper. Even in regular town driving here in the Midwest, the car's engine and transmission felt cheap.
0-60 times were not good and the passing ability of this car was not good either. The engine used to sound very winded as it tried to pass another car. The brakes were decent.
The stereo was decent and the interior was just okay. It looks like they tried to go too "futuristic" and it didn't work too well.
My wife liked the styling, I never particularly did. I used to call it "The Dustbuster" because I found the styling pretty boring and derivative, and it was shaped like a Dustbuster. Then again, Toyota isn't known for cutting-edge styling.
All in all, we don't miss the car, yet we didn't hate the car either. It was pretty basic transportation. It was pretty reliable and never let us down. It just lets you down in the passion department.