I got this car a few years ago as my first car. I was originally shopping for Accords, but they were out of my price range and I was recommended the Grand Prix because the 3800 V6 is supposedly "bulletproof." In the 5 years I've owned the car it has lived up to the reputation. It has had a few small issues(key gets stuck in the ignition occasionally and LED backlight on radio went out), some of which I caused(warping the brakes 3 times oops!), but it has been an excellent car! It has good looks, enough power to get out of it's own way, and it has been reliable. It's a "sleeper" in the sense you can save a ton of money over a Japanese car since they depreciate a lot, but are quite reliable
3800 v6 power (not super fast, but adequate), looks (I still get compliments and now people offering to buy it off me), room (took a 42 inch tv home in a coupe), well optioned for the price (leather, cd, power driver seat, power everything and such).
The only big thing I don't like is the interior design. It's very "roundy" and the headlights are TERRIBLE. Other than that I love the car.