Nissan Maxima Reliability: What's the Real Story?

I've been noticing a lot of chatter online about the reliability of the Nissan Maxima, with some owners raving about their experiences while others have had issues. I've got my own 2015 Maxima and have heard mixed reviews from friends who own similar models. What's the real story behind this car's reliability? Have you guys encountered any major problems or been completely trouble-free?