I bought by 2006 Matrix XR new and have loved every day of owning it. I've never had any mechanical problems, just kept up with regular oil changes (full synthetic) religiously and regular maintenance. Had a main computer issue in 2008/9, but was covered under warranty and was replaced. Fairly inexpensive upkeep. Excellent cargo space, much bigger inside than it seems! I've been able to fit bicycles, chairs, tables... (not all at once of course). Great for road trips, averages almost 30 mpg highway. Could have better lumbar support. Not great pickup when accelerating uphill, but no complaints. I love this car and am so sad to have to trade it in for an AWD vehicle for my mountainous terrain!
Gas mileage, cargo space, great for commuting, standard sound system is above average, interior design, reliability, inexpensive upkeep
Could have better lumbar support & better pickup when going uphill. Other than that, nothing!