I actually like it a lot. The outgoing A5 is still beautiful, and this is a step forward in many areas. The rear is more modern looking and the front grille is very well-suited for the front end proportions. Interior is another knock-out for Audi.
BUT, the headlights are a huge step backwards. They look mis-shapen and generic. All the iterations and advancements Audi has been fiddling with over the past decade, and they stick that pair on the new A5???? They look both visually larger and less modern, but I shouldn't be surprised seeing as they're basically ripped from the A4. I just though Audi was pushing hard to slim headlights down further and further, but this is a clunky inflation.
I also detest the fake mesh plastic inserts where the fog lamps are on the S model. That's a detail that belongs on an economy car, not a $40k Audi.
It's more fun to drive a slow car fast than a fast car slow.