 Outperforms any comparable SUV by a county mile, extremely comfortable on long trips, 19mpg is a complete fiction, more like 13.  Looks improve dramatically with custom wheels (mine are 22").  Hard to adjust a/c comfortably, though it's powerful, same with stereo system.  DVD system is complicated.  Have had problems with shuddering during braking, but Infiniti service is first class - they try very hard to please