In short, this place is a good size, with big rooms, and a nice outdoor space (although not large), and it is good value for money, but there are some unusual aspects to it which are worth being aware of.
All the pre-arrival stuff worked fine, although it's important to be very clear how many beds you want to use. The accommodation is in a very quiet area, miles away from big towns, next to the Somme canal and woodland. The street itself consists of semi-permanent dwellings (this one is pretty solid and modern, with metal roofs), some of which are derelict. It seemed like a nice community, although there is no street-lighting, the water is pumped and not recommended for drinking, and there is virtually no cell-phone reception - however, the wifi worked well.
The place would be a squeeze with 10 people, but very comfortable with up to 6. It was very clean and tidy and the owner responded quickly to queries. There is some enclosed space outside with seating, which is nice on a warm evening, and there's a barbecue available. The bed rooms are spacious, with comfortable beds, but very sparsely furnished - you might wish for a wardrobe and more space to store your clothes and belongings.
We would have liked: instructions for the hob, the jacuzzi bath, and the stereo speakers; a welcome pack with info on shops (supermarket c. 5 miles away) and restaurants, and other potentially useful visitor information.