How did you come to the conclusion that oliver cromwell wa a good leader?

I concluded that Oliver Cromwell was a good leader based on his military successes, particularly during the English Civil War, where he effectively commanded the New Model Army and secured pivotal victories. Additionally, his ability to establish a republican government after the monarchy was dissolved demonstrated his political acumen and commitment to his vision for England. However, it's important to acknowledge the controversial aspects of his rule, including his authoritarian measures and harsh policies in Ireland, which complicate his legacy.