If you genuinely can't see what he offers then I think you should also preface your posts with an admission that you have little knowledge or understanding of football.Everyone keeps saying he's a good squad player but what does he do?
Tom Davies is a reliable central midfielder. He is a not a star but will do a solid job in central midfield as a link player and also providing cover to the defenders behind him. He plays a simple game , get the ball and move it onto a player in a better position.