I played only one game so far, but I think it is one of the best ideas for a game using FIDE chess pieces. it is the simple yet ingenious idea of prohibiting checks, that makes this game playable.
For example, white can threaten the black Rook with Bishop to d4. The Rook is pinned,because of the Queen on a1. Normally this would mean a bad starting set up, but Black can just move the King on a3 and the Rook is protected. These tactical options are new and beautiful and fit completely to the changed aim of the game.
That Black has a drawing option, but not white, is absolutely necessary. Otherwise the advantage of the first-moving player would be huge, but with this rule the game is even.