Clad windows should not rot if maintained, ie, cleaning and calling. I like the look of a wood window because you can choose the color finish depending on your home. There are only so many standard clad colors.

The further away the wood is from the exterior, and from sources of moisture the better. The Marvin wood/ultrex does a good job of this, as the wood interior is essentially only a thick veneer as opposed to a structural component of the window... at least in comparison to a typical "wood clad" window.

Most of what you could see in terms of the wood deteriorating will be due to maintenance of the interior finish on that window. In your climate I suspect that interior condensation isn't a huge deal, so that is also a plus in terms of longevity for the wood in this situation. When it comes to wood in windows, the more there is and the colder the climate, the worse off you will likely be. Wood clad windows in my neck of the woods for instance are often replaced in 10-15 years. With that product and in your region, they should last longer.