Technically it is not that good : simple graphics and a bit slow animation, limited gameplay and so on.
But its use of "half-circle + Fire" combos or "quarter circle" Joystick movements (as popularised by Street Fighter 2 arcade game) to produce the various Judo Moves is somewhat original on CPC, if not unseen elsewhere.
Yet this game is not considered a good game by most, as it more remains in the field of a Sport Simulation instead of being an Arcade Fight game.