Picked up a 17 S for babydoll last spring. So far so good. Drives well, the pdk is awesome when driven aggressively down a winding road. Does a good job simulating a normal auto in traffic but can occasionally lurch, esp when starting on hills. Overall feel reminds me of the last good e chassis bmws, think e39 spawning an SUV. Solid and well damped.
The base interior is plenty nice for a runabout and the leather dash toppers are known to separate. Non sunroof adds considerable rear headroom. The lane keep buzzer is annoying but can be turned off if optioned.
17-18's can have their nav updated to support carplay / Android auto remotely by some dude in Serbia if that's important to you.
There's a more sensible repair for the timing chain cover leaks now,
https://www.macanforum.com/threads/rumo ... st-2697832
Transfer cases are covered for 7yrs I think.
Maintenance is something to consider, the pdk fluid is supposed to be changed every 20k miles and the dealers charge an arm and a leg for everything. Engine oil is easy to diy, pdk slightly more difficult. Dealer prices will make you laugh and/or cry.