Ginsetsu is decent, a good 1 of or 2 of.
Anyone downplaying it is retarded, it doesnt require an evo or Sevo which means you don't have to save up for it and can just play normally without the assumption you NEED to draw her.

A nice card to have to help you in longer games and benefits your deck and doesnt do anything bad.
Its decent, the best legendary shown so far as again you dont need to wrap your deck around it or plan around her.