Right, I couldn't seem to find the flight that had 772v5 seatmap anyway. Maybe I got things mixed up. On the other hand, I was able to change to 78J EWR-SFO last night. The length of the bed is great. I'm 6' and can fully extend without touching the end of the footwell. I seated in an even row(angled towards aisle) and the footwell seems larger in odd rows. So far however the largest legroom/footwell I have seen is 1A on 772v5.

Another thing I noticed is that even though the plane is brand new, there are already a couple broken places. One of the small light on the seat near the floor fell off. A separation bar near bulkhead overhead bin was hanging. Not sure where the interior is constructed, but the quality is concerning...