Very disappointing. I was in Zeeland for a work trip and had booked the Superior Double Room because I thought it might be worth spending a little extra money for the bathtub. I arrived around 10 PM and was looking forward to having a nice bath before a very busy day. Unfortunately, this was not to be. When I opened the door, I was greeted by the faint smell of raw sewage. Not overpowering, but it did put me off. I went to have a look at the bathroom and was quite disgusted to find loose hairs and some flecks of dirt in the bathtub. In the shower cabin and near the toilet, I found more loose hairs and dirty spots. Given how late it was, and the offputting sewage smell, I was not motivated to clean the bathtub myself and just went straight to bed. At least the sheets were clean.
Pros: Air conditioning (this was during a heat wave, so A/C was important), clean bed, apparently clean towels, spacious room.
Cons: Bad smell, shabby and dubiously clean carpet, dirty bathroom, low-quality soap (smelled like chemical cleaner), and no door for the toilet (I was alone, thankfully, or it would have been an awkward evening).
In general, my standards for rooms aren't exceptionally high. I could stay in a shoebox as long as it was clean. So I was especially disappointed to have spent quite a bit of extra money for a feature that was too dirty to use.