Absolutely one of the best places I have stayed at. The staff are friendly and helpful with activities each night to make it easier to meet people. It also helps Interlaken is an amazing base to travel around from, with the area itself having enough activities and shops to get anything you need.
I stayed in a 6 bed female and the best part had to be the sink and mirror in the room. I found having a chair in the room so useful as well.
The shared spaces are thought out and provide a great opportunity to relax, work or meet new faces. The hostel has heaps to explore too, with signs around the town leading you there.
The laundry next door is not owned by Balmers but I’d get there as they open to avoid having to wait for the machine. Others will put items in if you aren’t there.