Pros:
A cosy place, has everything you need.
The bedroom and the bed itself are huge.
We did not use the terrasse because it was rainy in the Easter weekend - in warm sunny weather it would be really nice to chill out there.
The electric fireplace made the evenings more cosy and athmospheric.
No internet, no TV - good way to get off the grid.
Einruhr and Monschau are just around the corner, we also visited Aachen and Maastricht on our way there and back.
A few trails pass very nearby, like Wildernistrail - we enjoyed some trailrunning and hiking.
Cons:
The shower temperature was a real gamble, jumping up and down.
The heaters in the bedroom did not work - luckily it was not that cold already.
Overall we enjoyed our stay and would recommend the place.