I think I flew this plane JFK-SFO last month (flight #871), seat 5A. My honest opinion, terrible. For the 5 hours or so of flight time, I went back to coach for about 3 hours to stand up and chat with some of the FAs. I'm a shade under 6 feet and definitely couldn't get comfortable. If at all possible, I would try to find a 3-class 777 or 747 to go transcon. The best biz-class seats are reserved for the crew (next to the last row in biz-class, pilot side). On the co-pilot side, a couple of window seats didn't have the usual 2 seats, just one. These were closer to the rear of biz-class also. Those looked very private but legroom looked standard.