IMHO you can remove the "good" and "except when". DB is 30% of the time a frustrating experience, which I've noticed makes me want to avoid it, even though I love trains. Trains in the rest of Western Europe are pretty great!
Boy what happened to DB since 2022? That was when I last travelled in Germany and I was never able to relate to everyone’s online complaints about them.
Did Berlin to Nessau through small routes: wonderful. Berlin to Prague? Stellar, if long. Berlin to Munich? Amazing all 4-5 times, unless they forget to stock up on soft pretzels.
Insane delays and cancellations. I’ve taken them Amsterdam to Berlin, Utrecht to Frankfurt, etc and only one trip has managed not to be multiple hours late. In one case a train ended early and I had to run like hell with my folding bike to cram on to a packed bus for an hour ride to the next station.
Fair, Deutsche Bahn is awful. Went to Berlin with them last November and instead of getting in at 9:00 PM we got in at 1 AM, which was especially horrible given we had a 6 and 8 year old with us.
They just cancelled a train from Amsterdam to Munich for me and never replied to my form for a refund. I called them about. Had to spend 600 extra for a sleeper instead.
Did Berlin to Nessau through small routes: wonderful. Berlin to Prague? Stellar, if long. Berlin to Munich? Amazing all 4-5 times, unless they forget to stock up on soft pretzels.