J class mini-cabin or not?

I'm booked int J for HKG-EWR in November. I was originally booked in 21A, but prefer the right side of the plane. 11K was blocked but available as was 21K. I called MPC and changed my selection to 11K, but can still call and get 21K opened up.

I do like the idea of the mini-cabin, but really in J, it's not that important as I feel private no matter what seat.

Is there any downside to 11K vs. being in 21K all the way in the back of the section?