I loved staying in Matthieu's apartment! I stayed for five weeks and had a great time. The flat feels spacious and yet cosy, is really light flooded (even in February) and had everything I needed. Matthieu was easy to communicate with and always helpful. The location is great, close to lots of nice restaurants and shops and not far from the port area, which is nice for evening strolls. The staircase leading up to the apartment is indeed quite narrow and steep, so not accessible for those with restricted mobility, but a good workout for the fit and healthy :) There can be a bit of noise from the street below, especially on student nights, but I felt this was quite within reason and probably hard to escape in the hustle and bustle of Antwerp. The mattress is firm and I slept there very well. The couch is very comfortable and cosy :) Highly recommended!