This was our second tour of Noilly Pratt - whilst the displays had not changed I still brought something fresh back with me. It is well designed, draws on the heritage of the business (I personally love the staff cards) and informative without being over bearing. Rounded off with a tasting session and the opportunity to relax in the cocktail bar afterwards. Said cocktail bar is a useful location for a pre-dinner drink without the tour.
Do remember to leave room in your suitcase especially for Ambre (by far the best blend) only available to buy in Marsellian. The ice cube moulds are great presents (I fill them with nougat and bottle stoppers) as are the range of products sold within the gift shop. Staff are friendly and the tours are given by excellent English speakers (sense of humour too).