The binding legal principles established are: (1) The test for reviewing CCMA arbitration awards is whether the decision is one that a reasonable decision-maker could not reach, as established in Sidumo; (2) To maintain the distinction between review and appeal, an arbitrator's award will only be set aside if both the reasons and the result are unreasonable; (3) In determining reasonableness, the Labour Court must broadly evaluate the merits and consider whether the result is capable of justification for reasons other than those given by the arbitrator; (4) The result will be unreasonable only if entirely disconnected from the evidence, unsupported by any evidence, or involves speculation; (5) Review courts must consider the totality of evidence rather than adopt a piecemeal approach; (6) An error by an arbitrator on procedural fairness does not render the award unreasonable if the finding of substantive unfairness is reasonable and supported by evidence; (7) Employers must follow progressive discipline procedures before dismissing for performance-related issues - counselling alone without subsequent warnings for continued underperformance is insufficient to justify dismissal.