My friends and I spent one wonderful week at Nathalie's and Arjen's place. Although we were 3 people , the apartment was very spacious. Nathalie was so kind to provide us with an extra bed in the living room. The apartment is nicely decorated (incl. fresh flowers on the table), clean and very well equipped (incl. dishwasher). We immediately felt at home. The communication upfront was fast and easy and throughout our stay Nathalie was always available. She helped with our baggage, gave us some great tips where to go and what to do in Rotterdam and provided us with anything we needed (fresh towels, dishwasher tabs, etc.). The apartment is not located in the center, but is well connected with 2 tram lines (walking distance 3 minutes) running every 5 to 10 minutes that take you to the city in 10 minutes. However, in case you are planning to go out and return late at night, you should check the connection (night buses are rare). Two large supermarkets are just around the corner with anything you need.
If you are ever going to Rotterdam, check out this great apartment. You won't regret it!