Great location on a lively pedestrian street in the centre, right next to the small Port Vieux beach. The flat is one big room that can be divided with a curtain into sleeping and living areas. The view from the "bedroom" window is fabulous, looking over Port Vieux and the ocean. The window is not large but we very much enjoyed sitting by it and watching the sunsets! Small kitchen worked well for us and the little dishwasher was a bonus. Spacious bathroom with a washing machine. We were kindly provided a baby bed, but expect to bring your own blanket and linen for little ones. Linen for other beds was provided for extra cost of 10€ per person.
The only downside was that both the building and the flat smelled kind of damp, which is common in old buildings in the seaside. You probably want to book somewhere else if you are sensitive to that kind of thing. Also note that both beds are sofa beds, can be a little short if you are very tall.
Communication with the hosts was great, also in English. We had a smooth contactless check in & check out.