We stayed at the Grand Oasis Marien in January 2009. The resort was very clean and the pool is absolutely amazing! Food was great and all the staff were very friendly. The only complaint we had was the beach. The water was full of seaweed and there was seaweed all over the place. In the morning people were trying to clean the sand but we never went in the water. We stayed in the pool the whole trip. Maybe it was just the time of year, but still I don't think that this should turn you off this resort because we had a fantastic time!