I know 4 people with 2013 and 2014 Jettas. The 2013s have the 2.5L auto and the 2014s have the 1.8T auto. All have over 50k miles with just oil changes and one 2014 needed rear brake pads. They are pretty solid cars especially for the price and options you get.
Change the oil regularly, change the transmission fluid every 50-60k miles, and you should be fine. The auto transmission on these is fairly easy to service and has a fill and drain plug.
My sister is looking to replace her 2005 Civic with over 200k on it. We test drove a few used 2011-2013 Civics this weekend and they felt "loose" and had rattles. All the dealers claimed "It's a Honda, it runs forever", but that doesn't make up for a car that was just driven and never maintained. A lot of them had bald or unevenly worn tires, but would probably sell based on it being a Honda. Last night we test drove a 2013 Jetta 2.5 with similar miles and it was quiet inside and felt more solid. It had almost new tires and brakes (probably 10-15k miles old), carfax showed it had the oil changed on time at the neighboring VW dealer, and was about 2 grand less. She will probably be going with that one.