Bought the Matrix because of an expected addition to the family. I am personally not the family car type of guy, but this car is awesome. The exterior styling is great, with the sports car edge to it. Tons of room inside, plenty of leg room, and plenty of rear storage space. Only drawback is it needs a hair more pep.
Room, gas mileage, and sound system.
Add more power on base and XR models. I know the bigger engine is incentive to buy the XRS, but more power from the automatic trans. would be nice too.