I have two in ZZ14 and two in GG
My son gets the GG tickets..
The difference in comfort levels with regard to seating between the upper deck endzones is definitely worth moving for imo.
And legroom is great! No ones knees in your back or yours in others.
The chairbacks don't start until row 11 or 12 so make sure to ask about them. The first rwo or two rows are also charibacks but are at a different price point.
We are in row 3 of ZZ15 and there were four empty chairbacks on the aisle in the first row of ZZ14 this past weekend, so we moved there midway through the first quarter. Loved it - more comfortable, more legroom, and a great sight line. My wife encouraged me to upgrade our seats next year. I told her this morning there is a $950 difference in the annual seat gift. She quickly changed her mind. LOL