Good location - central and near the train station. There are way too few showers. I stayed in a mixed dorm that shared shower facilities with multiple other rooms. I woke at 5AM to be able to shower and still had to queue. When I finished, the shower queue had doubled. Not a great situation if you have an early appointment. Faulty/difficult lock system for doors too. Had to repeatedly wake-up / be-woken-up by roommates to get the door open because the knob and access card wouldn't work.
The staff at Plus Hostel Berlin is the best hostel staff I've ever encountered. Friendly and very, very helpful. They repeatedly offered multiple solutions to any problem/question I had (for example: I checked in late at night and was really hungry. I arrived at Plus' restaurant just after the kitchen closed. Staff apologized for the kitchen having closed and offered to ask the chef if they could whip up some lasagna instead. I was immensely thankful for that.)
I had a great time staying at Pride of Paddington. Will definitely consider staying there again next time I'm in London. Hopefully, that's very soon. (Just a minor comment: the bunk bed swayed/creaked very easily. I was on the top bunk (room 1) and every time the girl on the bottom bunk moved, the entire bunk bed would too. Maybe some bolts or screws in it need to be tightened?)