Rüters Parkhotel in Willingen

Disappointing experience in this hotel, regretfully. I booked an apartment, presented as a space accommodating 3-5 people. Actually it was for 2 people and a small child, as the coach was not extendable. Additionally, the bed for the child was in a space not suitable for sleeping or living, less than 4 sqm, with no natural light and a window opening next to a wall, absolutely impossible to get air in and claustrophobic. I asked for another option to no avail, although the hotel was almost empty.
On our way to the hotel we got a message saying that they do not serve dinner the next day - to be correct, they offered us the possibility to cancel for free, however our plans were already made and we were on our way. It should have been mentioned on the booking page…
Furniture old and uncomfortable bed, well maintained but somehow creepy, with part of the dressing above the night table and next to the bed (I was constantly afraid that I could knock my head when getting up.
Not the standard of a 4star hotel - for jnstance not possible to make coffee or tea in the room.
A nice lady in the restaurant offered me a water kettle, informing me that the reception will take note of a 5eur guarantee (pfand). It seemed a bit weird, but I was happy for the possibility to prepare a tea. I was shocked to find out at the check out that I had actually to pay the 5 eur for loaning the kettle!
The people were nice, doing their job.
Food was ok, many options, but at times either too salty or not salty enough. We waited more than 30 min for fried eggs and omelette, and we had to remind the waiter about our order - albeit we were the only clients in the restaurant.
We will NOT go back!