Thanks to Joseph and Stephanie for their super fast and kind communication, and for reaching out to me on Whats.app as well! I had a pleasant stay at their place and would recommend it, especially for people who come for the EU institutions, as all of them are super easy to reach on foot. Also within a few minutes’ walk are all sorts of supermarkets, pharmacies, restaurants, and public transportation. The apartment is in a typical Belgian house which looks like it has been recently renovated, nice and clean, all apartments seem to be rental places and there is a lockbox by each door, including the main door of the house, to facilitate the self-check-in and checkout. The place itself is simple and functional, not big but absolutely big enough for one person. I appreciated the comfy bed, the simplicity of the decor, the many hangers in the closet, the calm area and the good internet connection, to name a few things. I even got an electric kettle, which was great for me as I am a tea drinker :)
Thanks again for everything!