I've had 2 in the past 2 years. (2016 and 2017 models) First one had to have the display replaced. Both had weird display artifacts when I pushed a lot of pixels over display port-to-USB C (2 external monitors)

My previous machine, a late 2013 model, lasted 3 years or so without any real issues.

Obviously mine is a meaningless anecdote as well, but fitting a common pattern.