I love my 2013 impala! Ive had it all over America and would drive it anywhere. I have it modified of course and maintenance myself. Ive went through the blend door actuator problem but its a easy fix but still annoying. I have friends with 400k on there 3.6lfx impalas. Not all 9th gen implalas are created equal. A little maintenance and a performance tune and these cars are fast a reliable with plenty of trunk space. Take care of it and it will take care of you.
Hopefully mine is that good! I have the 2014 Limited model, which is just a carryover 9th gen. I'm just approaching 150k on mine, but I do all my own maintenance. Currently in the process of changing out the rear struts and swaybar links.