These Nissans in many respects are Renaults in disguise.
Renault has consistently produced unreliable cars for decades and now that they own Nissan, many of Nissans products are suffering.
The Nissan Murano looks nice, and has nice features, but it is a reliability disaster as with every other "Renault".
They are not designed to last, but instead designed to be "profitable" to the company.
I'd reccomended not buying and going for a more reliable brand.