Certainly, here’s a critical review in English based on your points:
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The Hellenic Open University (HOU) has been a disappointing experience. The postgraduate programs feel poorly organized and thrown together, lacking the structure and quality one would expect from an institution of this level. The academic staff often appears underqualified and not specialized in their fields, which impacts the overall learning experience. Exams seem unnecessarily harsh and sometimes arbitrary, making it feel like success is more about luck than hard work. Worst of all, HOU gives the impression that it cares more about collecting tuition fees than actually providing a valuable education. Overall, I would not recommend this institution for anyone seeking a serious and well-supported postgraduate education.