I've tried to let this car settle with me for a few days...and I test drove it last night.
All was fine - I didn't particularly hate the sound of the engine either (though didn't inspire any excitement either, unlike my Subie's turbo). I did notice the turbo lag, which I found irritating for a daily driver. Still, when the salesperson talked numbers with me, I just got up and said "nice car, but about $5k too pricey..."
Now I fully understand and appreciate why Infiniti went to the Q50 designation - the G25 didn't sell as well as they had hoped, they admit was partially because of the perceived "cheapness" of the car by name alone. The 320 sticks with me as entry level, cheap, and makes the car feel overpriced.
If the 320i were the 325i, then the 328 became the 330i and the 335 stayed as is, I'd be more ok with it. Still, having the BMW badge just isn't worth the $ to me.