I have had mine a couple of months now and it seems that the same gripes and plusses come up the whole time.
I agree that it is deceptively fast and have found myself out of the bounds of the law a couple of time (a day!)
I can forgive, in fact i kind of like a slightly shabby interior and pants radio - it has a Japanese charm all of its own. My main problem is the heavy clutch and general weightyness of the machine; I have been using it as my daily driver and sitting in traffic its a bit of a dog. I can see why so many have it as a second car. In its element its brilliant, but around town my missus' 1series bimmer diesel beats it hands down for real world speed and driveability. I knew it was a proper car that you had to make allowances for and i shouldn't be surprised. Fuel consumption is an issue too but i didnt expect any different.
Worthwhile purchase? Park next to an audi tt like i did last night and its worth all the gripes and pain. Find a nice bit of b-road and 16mpg just fades into insignificance. Sneek a peak out the window at it and try not to grin. Cant wait to play with it on my first track day in the summer......