I did purchase "even more space" - I am pretty short, didn't need the legroom, regular seats are fine, but I wanted to be sure that I would have room in the overhead. It was so much less crowded in the overhead when first checked bag was free.
Initially I was the only one in my row - I had the window seat in a "two". After a short while in the air another passenger sat next to me because her TV was not working. I was surprised the flight attendant let her move to an even more space row - she did not come from a similar row. I know it sounds a bit mean but I had paid the extra fee for that row.
Snacks are very good.