Often I review a game and really don't like the suggested "best move". Is it always correct? This morning it suggested that castling K side was a mistake, and that g2g4 was the best move..... although black's knight on f6 was covering g4. The line made no sense to me - does computer know best?
How good the move is going to depend on the strength of the review, for the most part. The deeper the engine gets, the better the move will be.
There can be exceptions in some positions, but usually the moves are going to be good.
Often I review a game and really don't like the suggested "best move". Is it always correct? This morning it suggested that castling K side was a mistake, and that g2g4 was the best move..... although black's knight on f6 was covering g4. The line made no sense to me - does computer know best?