Students who transfer to a university after completing a KCTCS associate's degree are more likely to complete their bachelor's degrees than students who spend their first three years in already in a bachelor's program. Check out this graph:
On Sunday, the Herald-Leader offered an editorial opinion that "A dozen years after its creation, the Kentucky Community and Technical College System is seen as one of this state's success stories." That's well supported by data like this.
Source: The graduation rates above come from CPE analysis here, redone for readability.