Alin's place is a great value in Brussels. Not only is the location great, the space (we stayed in the HUUUGE Room) is very clean and VERY well organized. Alin is a very thoughtful host and makes his space comfortable for you.
I really wouldn't look any further for your stay in Brussels - the city center isn't too far of a walk, and there is public metro to take you anywhere if you prefer not to walk. There are also quite a few good restaurants just down the street you can grab a bite to eat.
If you're lucky, you will run into Alin and get to speak with him - he's a pretty cool guy!