So, long story short: Hannes messaged me a couple of times to arrange the transfer of the key, since he'd be away when we'd arrive. I only read his messages the day before we'd get there. Very last minute, Hannes still made sure we'd be able to have our stay, having a friend of his arranging the check in. A great feat of hospitality, which endured for the time of the stay. we had a lovely stay in Gent, with special thanks to him.