First the positive, the apartment is in itself is a good space with an amazing location. Now to the parts that are lacking.
One of the biggest negatives for me is that there was, lets call it a miscommunication. Pre-booking I asked about parking and was told street parking is available. When I checked in I was told it is rare. The unit is maybe 50m from the Grand Place (as I said amazing location) and anybody that has been to Brussel can attest that there is no street parking. I would have much preferred to be told the truth up front. Now, if that would have been the only issue, I would have just chalked this up to miscommunication and moved on.
That said, the unit is just in a sad state. At this point I do want to mention that the owners are using a service for this Airbnb and I am not sure if the state is due to the service or the owners. List of items are: 2 out of 3 lights in hallway broken, toilet has issues (known by owner as he told me at check-inhow to handle), 2 out of 3 lights to loft broken, I was asked by owner to throw out trash from cleaning from previous guest (as it was "too early to do it by the service"), no hand soap at any sink and other small items like this. I felt more like crashing somebody's place versus renting an Airbnb. Important to stress that this unit is being used primarily as an Airbnb as there was one of those local advertisement / coupon racks that one sees in cheap hotels.
In summary, the space itself is good, the location is amazing, but the execution is not living up to the potential this unit most definitely has. If it would treat its guest and be maintained at even a basic level, I would have no hesitation to recommend it fully. Like this I would recommend looking elsewhere.