I am not familiar with this particular seat/row. I noted on both seatguru and seatexpert.com that row 43 is color coded as poor due to limited recline....due to bulkhead and/or exit door location behind....and aisle traffic from adjacent galley. A seat with limited recline would be an uncomfortable ride for such a long flight, and consider if folks seated in row 42 recline, it makes your seat space even tighter. Opt for another row if you have other choices.
I am more familiar with the 2 seat rows 58-60. A significant improvement over row 43 even if it is further back in the plane. These seats feel more spacious and in particular I liked both rows 58 and 59 for that extra space between the seat and sidewall of the cabin and good view from 3 windows.
Good Luck with your seat choice, and Best Wishes for a great trip!
watch what you want. you may get it.