We had a great experience visiting Rotterdam. The studio is only a ten-minute walk from the station.
CJ and his wife Hennie are great hosts. CJ offered to help us with the luggage, whilst Hennie was very understanding when we were running late to leave the studio.
The room is very spacious and clean and the bed is comfortable. The 'dining table' is next to a huge window, which is very nice when having breakfast. The bathroom was also very clean and there are towels available in case you didn't bring any.
I forgot a t-shirt. CJ was willing to send it back to me. Great service overall. I highely recommend this place if you consider visiting Rotterdam.
Therefore, 5 stars.