The QX30 is called a crossover, based on the Mercedes GLA model. It will also use MFA and engines. It is not unattractive and quite unique in appearance.
One would think using a European production base is more than simply taking advantage of the very successful operation Sunderland is. Surely it will assist in a push for a reasonable presence in Europe.
The tie-up with Mercedes is going to be good for both firms. For Nissan in this instance, cost savings getting the cars to market will be substantial. It would have sped things up one would safely assume. They will have good NVH (noise, vibration and harshness), essential for a car to be considered premium. It makes sense.