Youtube chess masters are impressed with AlphaZero.
Alphazero does not just have the super-defensive play of regular computer program software. Alphazero has taken positions and openings that have been played many times but found new ways to gain new advantages.
AlphaZero has a style of play which can teach humans how to play better chess.
AlphaZero is willing to sacrifice material for position and dynamic flow and energy for its pieces. Computer programs have previously been material focused.