Thank you again to Greg (drexplode) for the deal on the A3 wheels & tires! They did require minor rear wheel spacers else the tire would just barely contact the upper control arm; front tire clearance wasn't an issue, even in hard parking lot turns.
The switch from 205/60/15 to 235/45/17 was pretty dramatic visually, but for ride quality I'd say it's the same or better. I have more contact patch now but with less sidewall flex.