Was just at the "mothership" and had a chance to look at a 26. Yes the new windows do give an entirely new look, they also minimize air flow and do diminish the natural light. These same windows and shades were in a prior RV a few years ago and we discovered that you really loose airflow without using the ceiling fan, then you have the added noise. But the biggest issue for me is the shades need to be put in the up position while driving otherwise they get beaten up a bit, and come morning they allow a lot of light in the sides come morning... be prepared if you are sun up wake up kind of person...
On a positive note, the accent wall, doesn't look bad and is smooth. The only concern is that you now have a fixed color palette that you will always have to take into consideration... It is a nice touch but doesn't allow a complete color customization as you will have to keep to the grey tones...