CO planes don't fly into JFK but the VS flights are CO codeshares.
I took CO BF EWR-LHR yesterday and found it much worst than VS. Whilst it is a flat bed there is only a tiny V shape to tuck your feet into. If you have big feet they probably wouldn't even fit.
Also, if you are in a window seat and your neighbour has the bed flat it is awkward to get out.
The VS seats are very private and all have isle access. There is also plenty of room for your feet.

PE is an excellent product. Way better than UA econ plus. In fact it is the same seat size/pitch as domestic 1st class. The food is better and served nicely than regular econ. (econ plus serves the same stuff as econ).

Econ is horrible whatever airline you fly - agree.