Pros (+) Perfect location by the lake, big, clean showers, spacious communal areas, good kitchen facilities, water refilling station by the entrance.
Cons (-) Our twin room was the smallest I've ever had in any YHA and the beds were extremely uncomfortable. The mattresses were rock hard, so were the pillows. The bedframe was made of metal so every time one of us moved, the whole bunk bed rattled. Duvets were way too thick for the current weather, we had to take them out of the covers and just use the latter as sheets.