I flew the 789 DFW-MAD a couple of days ago and personally I prefer the Zodiac seats in the 788, with the obvious caveat of getting a non-connected 788 seat. Compared to the rear-facing Zodiac seat, the BE seat had less storage and I liked the extra power plugs in the Zodiac seat.

On my flight the crew controlled the cabin windows but were nice enough to relinquish control to me. I was in 2A. I find tht if you set the windows to the 2nd or 3rd open setting, you can see out but the cabin doesn't get flooded with light.

Also, the crew didn't pull the curtains to the galley and without the eye shades it would have been very annoying. The noise was noticeable even with earplugs.