We had a double room with twin beds on the second floor. The size of the room was absolutely sufficient for our short stay. When you tend to stay longer, you'd might miss a wardrobe. The room and the bathroom (with a big shower) was perfectly clean (although the shower had black tiles there were no water spots). There was a good signal strength and speed of the free Wi-Fi in our room.
The staff was friendly and well organized, the breakfast was good and sufficient, everything was fresh.
Altgough our room was to the front side (rood with two lanes for each direction and tram) the noise insulation was good enough to let us sleep well. From the inside we didn't hear anything from other rooms.
The hotel is perfectly located to explore Rotterdam by foot.
I can absolutely recommend the hotel.
If I should criticise one thing, it is the narrow parking spaces in the car park that made quite a view people park on two spaces.