"As I expected from my previous stay in a single room, the standard twin room in the second building is quiet and you cannot hear the train as the first building acts as a barrier.
The twin room was larger than expected, rather spacious. It felt a bit older than the other building but it was alright. The AC had an unpleasant smell the first day but it went away quickly.
The beds were the same as in the single room but directly on the floor. They were on the harder side, but the pillow provided in this room was thicker than the one in the single room.
The toilet is very loud so you might wake someone up if you need to use it at night, but there's also a shared toilet in the lobby that could be used if you want to avoid the loud noise at night. "