QX56 Reliability

[reckless1]

Can anyone tell me what the reliability is like on a 2004-2008 QX56?

I currently have a 2002 QX4 which I love to death. I severely abuse her without any conscience. I sometimes want to get another SUV as I drive 50k+ miles a year. But I want something that is as durable and reliable. Ive been debating between another QX4 from 2003 or a QX56 if anyone can enlighten me in regards to reliability, durability, and abusability. I think that's my favorite feature is that the car can be beaten all day and not have a problem with it. To me a QX4 can last over 250k miles if maintained properly with hardly any major expenses. Is that the type of life expectancy of a QX56?

Thanks!