Humboldt University german summer course?

Hii i'm a student from spain and i recently registred to the Humboldt University intensive german summer course in Berlin, which takes place during July-August. I was wondering if there is anyone here that might have done it and what was their experience there like, if they had a good time. I was also curious to know more or less the range of age and nationalities of the classmates and very importantly if anyone please has any advice on finding accomodation i would appreciate it. Do y'all recommend renting a room in a student's flat (i've heard there are a lot of scammers there :( )or staying in a hostel maybe? The University does not provide accomodation, they say they offer assistance but no information has been sent to me yet. Thankyouu