What is the standard of review in this case?

Our review in this case is largely, albeit not entirely, governed by the substantial evidence standard of review, as follows: "It is a well established rule which has been stated time and again, that all conflicts must be resolved in favor of the respondents and all legitimate and reasonable inferences indulged in to uphold the findings of a trial court. No matter what conflicts exist, if there is any substantial evidence in the record which, taken in its most favorable light to the finding of the trial court, justifies that finding, then it is the duty of an appellate court to affirm the judgment based thereon." (Bobys v. Mester (1951) 102 Cal.App.2d 583, 585.)