Sat in row 12 of section 126. Loved it. The Carolina Panthers were in town and the NFC South divisional games always have the best atmosphere all day, starting at Champions Square outside of the stadium.
126 was far enough to the side that the uprights didn't bother our view. The only major downside to end zone seats is not being able to see the running game all that well and only having one scoreboard in your line of sight - and it's in the north endzone. The jumbo trons at the Superdome are also very small in comparison to Metlife Stadium and AT&T Stadium in Dallas. I would sit here again though, 126 is a pretty safe bet for good seats. Just avoid the upper level corners at all costs.
As hard as it is for me to admit this, the Superdome is good but not a good as the Georgia Dome in Atlanta. Georgia Dome's navigation around the stadium is easier and is more accessible via the MARTA trains that they have. Saints fans are much livelier though and create a better fan experience at Saints games.