Based on the number of your questions in the comments it is apparent you would like to hear more about the trains as a travel experience.
Day 1 Amsterdam to Gent via Antwerp and Rotterdam. Really easy, even jetlagged. No Bar Car experience.
Day 2 to Bruges and back to Ghent Approximately 30 minutes each way. Train station in Gent well located downtown. Bruges was a 15 minute walk down a cobblestone street with the roller bag brigade. it was a lot louder and more clickety than the train. Two thumbs up for the Medieval Express. No Barcar experience.
Day 3 finally got a shot at the high speed TGV. took the local from Gent to Brussels than were able to get “reservations” for the TGV from Brussels to Lyon. Turned out to be a little more drama than we wanted. the car we were assigned to had been oversold by a few hundred people. Let’s acknowledge the extensive bar car experience necessary here as we were two seats short for three legs of the trip. It is worth waiting for an assignment if you have a lengthy trip ahead. 200 mph in any sort of ground transportation is cool. otherwise just a very typical train experience.
Day 5 We are on the way to Chur, Switzerland via Geneva and Zurich. We have moved out of the absolutely flat Dutch, Belgian and Northern France countryside to rolling hills in Lyon. Now heading into the Mountains. After the switch in Geneva we promise a bar car update.