We had a room with a great view of the harbour. The room had a very small balcony with only one chair but it's almost possible to also fit the plastic chair from the room on the balcony.
The hotel doesn't have an elevator and, at least when we checked in, there is nobody offering to carry any luggage up the stairs. I helped the old couple that checked in after us to get their luggage up the stairs.
Since the shower in our room didn't have any shower curtain it was impossible to keep water from getting on the floor.
But overall the hotel is decent and might be the best value for your money in Cassis since it is a very popular and quite expensive place.More