The car's not that pretty or that much fun to drive on a hot summer day compared to a BMW convertible, but it beats everything else as a daily driver/commuter. I've gotten 750+ miles off of a single 12-gallon tank with a manual transmission (62.5 mpg). When driving in the city for the full tank, I still get over 50 mpg. Since the car is a diesel with gobs of torque, you don't have to downshift that often on hills, even when loaded with gear. There is lots of room in the car, enough for three friends, a dog, and camping gear.
The diesel engine is the best, as is how easy it is to maintain the car. The engine bay is cramped, but it's a tiny car which is to be expected. However, it's easier to do the maintenance yourself and save several hundred bucks instead of going to a dealership. The car is a great bargain!
The car could do with a bit more power, but you'd sacrifice fuel economy so it's a good trade. If you want more power, there are a few modifications you can do to it. I prefer a chip modification because you're actually get more power and torque with better fuel economy if done correctly.