I bought this car to replace a gas hog (mustang gt) for college. My job is roughly an hour and a half away and I needed something decently efficient on gas that didn't have the price tag of a Prius, and could still do the work and school trips on one tank. I came across one of these on a local craigslist and haven't had any regrets. It's one of the only Acura's (to my knowledge) that doesn't require premium gas or throw a fit if you don't put it in the tank. It usually does in the mid 20's mpg in the city and high 20's if not low 30's mpg on the highway. As long as you don't stomp on the gas pedal this car will do amazing no matter where you drive it; which was one of the selling points for me. The only downsides to this car come when you have to either replace belts, headlight bulbs, headlights or taillights. Because the car is so small, space under the hood is in short supply; therefore things like belts typically mean removing the entire front bumper to replace. The headlight bulbs (usually for the passenger headlight) also require removal of the entire bumper, which means you'll need to schedule some time aside for certain "simple" projects. If you need to take an entire headlight or taillight out of the car, the bumpers need to be removed completely as well since the retaining bolts are underneath the headlights and taillights. Besides those downfalls, the car is amazing. If you can find a type-s (200+hp) and don't mind driving a stick, those are the way to go. If a manual transmission isn't your thing the base models still have a good amount of kick to them (150+hp), and parts for these cars are extremely easy to find and aren't a whole lot of money either.
This is truly a little gem of a car. I've had mine for over four years, put almost 50,000 miles on it, driven it three times round-trip from Connecticut to Arkansas, driven it around the mean streets of Brooklyn. It never lets me down. I've driven it at 80+ mph with all my worldly possessions (including an antique desk) crammed in the back and STILL gotten 34 mpg. I'll drive it until the wheels fall off, unless I need something with four doors.
Let's be honest it is a 20,000 dollar car so it is not going to come near something like a porsche or lamborgini. That being said, the rsx destroys almost all it's competion, the only thing that comes close (in it's price range) is an RX8 and it loses. THis car is extremely responsive fun and to top it out gets great milage. If your looking for a car in this price range look no further