Could anyone expand on the "51D and 51F: no half barrier" comment in the summary? Does that mean the barrier does not go down to half? My wife and I are flying ORD to LHR, and we were planning on just choosing seats for free once they open, but we're nearly 2 months out and the seats are already starting to fill up so we are getting nervous.
We're considering 51E & 51F so she could sit forward since she gets motion sickness, and not have to step over or be stepped over. It is a night flight, so I'm not concerned about a window, and I also rarely get up during a flight so I'm not worried about me having to step over someone. We also have the option of 53E/F, but then she'd potentially have someone stepping over her. On the lower level, 15A/B are still available, but I'm concerned about those being near the lavatory.