The breakfast is super!! Despite a 15 EUR extra, it is a good strategy for hotel to separate it from room fee, otherwise it is too expensive.
But the floor height is low and room kinda small, if you add breakfast fee together, the value for price is not as high as the business hotel nearby called Bilderberg Parkhotel Rotterdam.
Nice little garden. Good to stay a night or so, but not much of a resort stay.
24/7 check in/out not a problem.
The staff are warm.
5-10 stairs to carry the suitcase by yourself to the elevator and front door.