Based on the ad it wasn't clear that the train is SO close to the window. It actually was confusing to us that so many guests seemed not to have an issue with the noise, which was a nightmare for us even with earplugs.
The window-side of the bed is a bit uncomfortable. Rest was good. Wifi was a bit weak.
Unfortunately, the noise makes this flat not recommended from our perspective, since this is a downside that overlays lots of the positive aspects like the smooth check-in and check-out, cleanliness, good connection to public transport.
The little bakery in the train station is awesome.
If you are used to a very noisy surrounding while sleeping, this flat might be an option for you.