He calls things as they are, and the boss really appreciates it.
Tips
usage
Colloquial set phrase praising bluntness. Has surged on Chinese social media in recent years as a setup for honest opinions: "有一说一, the food was actually really good."
register
Spoken/informal. The shorter form 有一说一 is even more common online; the full 有一说一,有二说二 sounds slightly more emphatic and old-school.