Inexpensive, by the standards of Rotterdam, a small hotel. It is located far from the center (8 metro stations with one transfer). The rooms are small, but everything is there, including a coffee machine. Good plumbing. Very quiet. There are no grocery stores closer than 2km. There are 2 restaurants within walking distance (pizzeria and Indian cuisine).
A great hotel in a relatively quiet location (when planes don't land over it, which happens). Good transport accessibility (it takes half an hour to get to the center, the bus stop is nearby). The rooms are clean. Free tea and coffee in the rooms and on the ground floor. The breakfast is not very varied, but for your money it is quite nutritious and delicious.