I was actually at the Grand Hostel Urban in Berlin because this one is right now closed due to Covid.
My stay for 11 days was fantastic. The personal and owner are very very friendly and welcoming.
The prize is right and the area is very lively.
I easily could have stayed there for a longer time.
Only good things to say.
(If you want to lock your stuff, you have to bring a locker, that's the only tiny bummer)