Laurent's apartment is really nice. It is located very close to the main train station as well as rather close to the city centre. I never used the tram because you can walk to any place of interest in Ghent. The apartment itself is beautiful and has all the amenities you'll need. Plus the cat is indeed as fat and friendly as has been mentioned before.
Laurent is a very friendly and down-to-earth host. Since I rented the room alone I spent a lot of time with him and we had great conversations about various topics. I highly recommend Laurent and his apartment for a stop in Ghent (which itself is gorgeous and worth visiting)!