Bought the car new and have only to replace the battery. 85,000 plus miles and no tune-up or plugs needed yet. Normal oil changes every 5,000 miles are my only expense so far other than a set of tires. Best car I have every owned - period!
I chose this car over a few other performance cars that offered more features and/or were a better value - I liked the styling, and the fuel economy is excellent if you drive sedately. If you do push the engine up to 7k+ (no point buying a Type-S if you don't), you're in for a lot of fun. The ride is very stiff - if you need a comfortable ride, look elsewhere. Handling can be skittish when accelerating hard. Some quality issues: the shifter often didn't want to go into 3rd (mainly when the car was cold - solved by replacing the stock transmission fluid with a better quality one), lots of rattles (moonroof, dash, hatch), and the paint chips easily. The Bose audio system is awful (see below).
I bought the car for 3000 dollars less than the Blue Book value from a dealership in the Philadelphia Area. It came with 70,000 miles and it was in wonderful condition. The exterior flows-- it's designed so well and it looks so sexy! It's so smooth. By the way, mine's red. ;) I like simplistic interiors similar to that of the '98 Hondas. My family has owned four generations of Accords, and I love the older looking interiors. This car's interior is simplistic, yet futuristic, and that's why I love it. The slip angle at all four corners of the car was designed perfectly, and with MacPherson Struts, I was surprised at how perfectly this car corners. Fast, sexy, and reliable. 5 stars
The RSX type S is a great all around car. The exterior looks awesome. Engine is great. Has plenty of power in the top end. The midrange suffers. Interior design is nice. It's a simple design, but I still like it. Sound system is great. I wouldn't change anything about it. Transmission is one of the best I've driven. Throws are quick and light. Great feel. Pedals are good for heel-toeing. Brakes are nice and strong. Seats are awful. They support you well but will hurt you after about an hour. This car feels nice and solid, is pretty fun to drive. Plenty of interior storage space. Hatch has plenty of room for luggage and other junk.