As a US person who has, You need to experience euro train travel. The whole experience, from booking using an app to waiting for a train. You’ll find the apps are good, the schedule information accurate and up to date. The apps don’t do stupid things mostly. When you arrive at the station, you’ll find it generally clean and well maintained. Signage is clear and tied into the train information system. Arrival times accurate. You can get a nice sandwich if the shop is open. Intercity Trains are modern and fast. Lots of power ports to plug in your phone. Nice seats. Also great electronic signage in the train. You might even have good wifi. You would not be afraid to use a bathroom in a station or on a train. Best part is that you CAN rely on the trains. Nothing like Amtrak where if it’s on time it’s remarkable.