I just booked into seat 17K on a B789 (outbound) and 18A on a B789 (return). Is it better to move back a row or two from 17K as the seat is narrower due to the table and IFE being in the armrest? Also is the legroom better in the first Economy Comfort row (row 17) considering the underseat space afforded with the other rows as shown in the link in Post #2? I guess there is the advantage that nobody can recline into row 17.