Train tracks right outside bedroom window - and that's exactly how it felt. There's no way the windows can be called "soundproof" - even high pitch train sounds easily got through. It's even worse in evening and morning when faster (and louder) trains run.
Our 1.5y old woke up twice screaming after train passing by, so we had to move out the next day to find a new place. Host arrogantly dismissed the sound problems and refused any refund for remaining stay (suggested cancellation as if that all was our fault), still waiting on AirBnB to step in and refund due to false advertising in the listing.
Thus recommend avoiding this listing unless loud trains really don't bother you. I have no clue how other reviewers dismissed the sound issues.