At this time if they can't even clean the toilets then it is not worth the steep price.
Here is a video of the squeaking noise we had all night (sounds like the rail car is about to break in half): https://www.youtube.com/shorts/GLNqpCfIawc
The toilets: https://imgur.com/gZqhDvz , even better was that the toilets in the other attached rail carriages had no toilet paper (Amsterdam -> Zürich)...
Additionally from Amsterdam to Zürich 3 people got robbed while still in the Netherlands. This train is reservation only, they could at least lock the doors or something to prevent criminals from boarding.
I would have been more comfortable with a seat in the 1st class SBB carriage that rides along than a private cabin and it would have cost a lot less.