For some reason, I don't find the interior particularly attractive, it looks pretty spartan. It doesn't jive with the definition of luxury or the price tag attached to the car. At least in my books. I would much sooner look at the CLA45, 335, IS 350, or even the S4 than the S3.
As Nothern once put it comparing the current E-class with the C-class, it's a free fall in interior feel and quality from the A4(S4) (which already is a sorta compact luxury) to A3(S3). And for not much less money.
0-100 in under 5.0 sec is becoming pretty common these days, and I don't see why I need to put up with less for more.
Strictly my opinion though.