The Netherlands is a small, low, densely connected country, and Amsterdam is only the western edge of that network. The Randstad (Amsterdam, Haarlem, Leiden, The Hague, Rotterdam, Utrecht) functions almost as one urban region on NS trains. The north, the rivers, and Limburg in the south are quieter and still easy to reach. Dutch is the language. English is spoken at a high level in the cities, which can hide the fact that the country is not an English-speaking one.
Trains are the default between cities. Bikes are the default inside them, including for people in offices. Trams and buses fill the rest. Stations are close to centres. You can visit a second city as a day trip without making it a project, which is both useful and how Amsterdam stays overcrowded while Utrecht or Leiden are calmer a short ride away.
Cards work everywhere; cash is uncommon. Coffee shops are a regulated cannabis system, not cafés. Cafés are cafés. The country is flat, windy, and wetter than postcards. A first visit works if Amsterdam is two or three nights and the rest of the week uses the rail map. Treating the canals as the whole country is the usual mistake, and it is an understandable one.
