Although we were glad to have found a hotel near the beach on a really very nice and calm island and near the beautiful village of La Couarde, we had a big problem with this hotel, especially with the noisy surroundings.
The very first night we arrived, the restaurant of the hotel had a live rock concert which lasted until about 1 am. Unfortunately our room was very poorly insulated, so we really felt terrified of the sound and there was no chance of sleeping. The next day we asked the hotel staff, if this is planned to happen again during our stay, but they assured us that this had been the last one of two concerts in august. This was not strictly speeking true because the small fairground right next to the hotel played loud music every night until 1 am and had another live rock concert a few nights later.
We also had a problem with the sleeping arrangements. In the appartements of the first floor of this hotel, the bed is high off the floor under the roof. You reach it via a very steep ladder. Under the roof there is not very much headroom and going to the bathroom at night is quite dangerous and uncomfortable.

So while we can highly recommend Ile de Ré and La Couarde to you if you are looking for a quiet place you should look for another hotel to stay.