I stayed at Johan's place during a conference. The apartment is spacious, warm and welcoming, other than ideally located (Ghent city centre is a 10-15 minute walk from there).
Leen and Johan were perfect hosts, super responsive, kind and attentive, and their list of suggestions was great!
I travelled alone but with its 2 bedrooms I can certainly recommend the place for (small) families or groups of friends.