Health Insurance for International Students - is AON the best choice?

I am a non-EU citizen moving to the Netherlands to study at Leiden University next month. The university recommends AON ICS Complete+ student insurance. Based on the quote they provided for me, it will cost about 53 euro/month. Does anyone have experiences with AON student insurance to share? Is AON the best/only choice for student insurance in the Netherlands?

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Thanks in advance!