Travelled in row 3 last year and used the buddy seat for dinner with Mrs A. Found it great to be honest and wasn't aware of any real delay as people seemed to be served in what appeared to be a fairly random order (perhaps the dine on demand approach ?).

I'd expected row 2 to be better, indeed I tried to get these, but from memory (?) there's a risk that you may feel a bit darker and "under the stairs" due to the proximity of the stairs to the centre seats (?). Perhaps someone with a better memory than me can comment here .... Regardless, there's not a lot of difference here and I found the service to be fabulous, the food and wine lovely, and the seat comfortable (albeit the buddy seat isn't as comfortable as I expected - but then again after a week in the US I was probably bigger than I expected too .