[Homer] Marge, may I play Devil's Advocate for a moment? [/Homer]
I bought an '02 GT 5-door last August. It had the blown intake manifold gasket (common problem, cheap and fairly easy to fix). It also had been riced and abused to within an inch of its life by the PO. It has 107k miles, had 98 when I bought it. I've replaced the clutch, fixed most of the PO's hackery on the wiring harness, and generally fixed the stupid E36 M3 this kid had done to it. I still get a random CEL, and it's developed a coolant leak I cannot pin down (hits the fan and goes everywhere, only does it intermittenly, can't make it do it sitting in the driveway). I replaced the front rotors when I got it, and after less than 10k of highway driving (and I'm not hard on it), they're already warped again. The ebrake cables freeze solid, and now 2nd gear grinds unless I granny-shift it. The spoiler came off in my hands when I shut the trunk.
The seats are not as comfortable as they should be for long hauls, but seats are always a matter of personal preference.
It also does not get anywhere near the fuel mileage I think it should....all highway at 70mph gets me about 28 mpg per tank, when it should be more like 32-33.
As for upsides? It does look good. When mine runs right, it's pretty spunky. Brakes and handling are acceptable. The level of equipment you get is pretty nice for the price.
I'm not sure how many of mine's problems are down to the PO's hackery, and how much are due to poor design. I do know that this thing has put me off Hyundais.