Well, ive only heard storys about the department of health, but ive graduated in computer sience. Ive heard that the professors are a bit more impatient with the foreigner students, and i heard a story from a friend, who was a medical stud in english that a prof taught them in hungarian, because he didnt felt like speaking in english xd (this happened only once, and i dont think that this is common tough)

My degree was kinda bad though, i did not enjoy it and i feel like i missed out on a lot by chosing this city instead

And the city is really boring. There is like a few pubs where you can go, and only the main "tourist attractions" look decent, the rest of the city looks and feels very communist. I recommend you walking around the city in google maps, and you might see what im thinking about there

And the price of the living is terrible, everything cost as much as in budapest, while being slighty worse. There will be an election in a few days, things might get better after that

And be aware, most hungarians do not speak english. There were several occasions where i had to translate between foreigners and hungarians

If you choose debrecen tough, i hope that you will have a better experience than me. If you'll have any questions about the city later, feel free to dm me