Carmen's apartment is excellent. It is in an old schoolhouse - the exteriors are in the original style but the inside looks totally new. The location is excellent - about a 5-10 minute walk to the Ghent city centre and castle, and easy to reach from the station.
The apartment was clean, furnished with everything we needed, a few basic snacks in the fridge and a fully equipped kitchen if you need one. We had a very comfortable 3 night stay there, and I would recommend Carmen's place even for longer stays.