If you're a Browns fan that gets annoyed by fans coming in and out of your row, you don't have to worry about much of that here in section 350. The rows are tiny with maybe 8-15 seats in each row. These are not bleacher seats so other fans are going to have to stand up to let you out of the row but I didn't see a ton of that when I sat in row 22.
We were pretty much in the exact middle of section 350. We were right in front of the west end zone scoreboard/jumbo and you can either turn around to try and see it or look into the opposite end zone for replays. It depends on which seat you have.

I have sat all over this stadium and I give kudos to whoever constructed it because the sight lines are great even in the 500s. Navigation around the stadium is also very easy as there is plenty of signage and arena staff to show you to your seats.