My partner and I went to Brussels several years ago and would definitely recommend it. The Grand Place is a great place to just hang out in the evening and soak in the atmosphere. The chocolate is amazing and so many little chocolate shops that you can only find in Brussels. As others have said, a day trip to Brugge is highly recommended. We went to Brugge for a day and wished in hindsight we would have stayed a night as well to really see the town after the tourists leave. If you like out of the way places, you will like Brussels.