Liam was a great host for the place we stayed at over New Year in Brussels - we couldn't ask for more!
The public transport is quite confusing and less convenient than in other cities, but luckily the apartment is relatively close to the city centre (40 minutes walk), which we did most of the times if we didn't take a taxi. Also, the apartment is close to Ixelles and Rue de Bailli (5 minutes walk) which is a really hip and awesome part of the city.
We can definitely recommend it to both young people and families as its a great place to visit Brussels from.