We both had day cards for the train, so only 15€ per person for a day in Rotterdam was quite nice price for a student. More left for shopping hehe ;-) We left just after 9 am and arrived to Rotterdam at about 11 am I would say. We headed straight to Primark, which was located next to the Alexander train station, so not the central station. I had never before shopped at Primark so I really did not know what to expect, except for super affordable prices and not that great quality. But still, I was so shocked when we got in from the front doors. The whole store was a big mess of all sorts of clothes and people going mental. I almost just took a u-turn and walked out right away, it seemed to be too much and not worth it. I could not think of enjoying my time in there. We did end up spending like 1,5 hours I want to say in there. But yeah, I was expecting something like H&M or so. The prices were super low, though, and I bought a few things from there.
The city center of Rotterdam was really nice I think! It was way bigger than I had thought and I really liked it. I don't know why people said we shouldn't go there at all. Definitely a place worth visiting I would say. Also, the people were super stylish.