I stayed with Guillaume for around 6 weeks in the winter.
Firstly, the room is a great size, the bed is comfortable, I had a desk I could work at, so many places to store clothes and everything I was carrying, it was always very warm (sometimes VERY warm), really lovely natural light, and the house is very secure. The bathroom and kitchen downstairs are very clean and have everything you need but they are shared by everyone in the house so it can be difficult with everyone's morning routines.
Keep in mind that this is a *very* busy family household with three young children under the age of 6, and that Guillaume is currently in the process of renovating. And while you will have your own big room on a floor to yourself, it is sandwiched between the upper floor living space for them, and the downstairs communal kitchen/bathroom/play area for the kids. And the children are *loud*, like sometimes uncomfortably disruptive loud. There is often a lot of excited screaming, crying or banging on the hard floors above and below. Do not expect to be sleeping in on the weekends past 7am..
However, I cannot go past how welcoming Guillaume and his partner are. The hospitality they showed me was incredible, and they were extremely respectful and always gave you enough space. This will suit people who are happy to spend some time around kids, especially travelling parents and business professionals, but maybe not so much for a weary traveler.
Thank you G + D