I do wonder if the problems of the F35 are because they didn't compromise.
The designers of the Harrier obviously said something along the lines of "Right boys, to meet the unique requirements we are going to have to give up on supersonic and impressive turning. Never mind", whereas the designers of F35 want it all. "S'up dudes, we want stealth, supersonic, decent missile/bombload and fancy sensors and hovering and bringback and and and and"